diff --git a/frontend/components/account/AccountCenter.tsx b/frontend/components/account/AccountCenter.tsx
index 5d3fd1f7..6f88482c 100644
--- a/frontend/components/account/AccountCenter.tsx
+++ b/frontend/components/account/AccountCenter.tsx
@@ -233,7 +233,7 @@ const WALLETCONNECT_POLYGON_RPC_URL = String(
   process.env.NEXT_PUBLIC_WALLETCONNECT_POLYGON_RPC_URL ||
     "https://polygon-bor-rpc.publicnode.com",
 ).trim();
-const TELEGRAM_GROUP_URL = "https://t.me/+8vel7rwjZagxODUx";
+const TELEGRAM_GROUP_URL = "https://t.me/+Se93RpNQ58FhYmZh";
 const TELEGRAM_BOT_URL = String(
   process.env.NEXT_PUBLIC_TELEGRAM_BOT_URL || "https://t.me/WeatherQuant_bot",
 ).trim();
@@ -298,7 +298,9 @@ const InfoRow = ({
       <div className="shrink-0 p-2 bg-slate-800 rounded-lg text-slate-400 group-hover:text-blue-400 transition-colors">
         {Icon && <Icon size={18} />}
       </div>
-      <span className="min-w-0 text-slate-400 text-sm font-medium leading-5">{label}</span>
+      <span className="min-w-0 text-slate-400 text-sm font-medium leading-5">
+        {label}
+      </span>
     </div>
     <span
       className={`min-w-0 break-all text-left text-sm font-semibold font-mono sm:text-right ${isPrimary ? "text-blue-400" : "text-slate-200"}`}
@@ -733,12 +735,10 @@ export function AccountCenter() {
       telegramBotLink: isEn
         ? "Open Bot (@WeatherQuant_bot)"
         : "打开机器人 (@WeatherQuant_bot)",
-      telegramGroupLink: isEn
-        ? "Apply to Join Pro Telegram Group"
-        : "申请加入 Pro Telegram 群（需审核）",
+      telegramGroupLink: isEn ? "Join Telegram Group" : "加入 Telegram 群组",
       telegramTopicsGroupLink: isEn
-        ? "Apply to City Topics Group (Pro)"
-        : "申请加入城市话题群（Pro，需审核）",
+        ? "Real-time Weather Updates"
+        : "城市实测温度群",
       copyCommand: isEn ? "Copy command" : "复制命令",
       paymentMgmt: isEn ? "Payment Management" : "支付管理",
       paymentToken: isEn ? "Payment Token" : "支付币种",
@@ -869,7 +869,9 @@ export function AccountCenter() {
   const [paymentError, setPaymentError] = useState("");
   const [lastIntentId, setLastIntentId] = useState("");
   const [lastTxHash, setLastTxHash] = useState("");
-  const [manualPayment, setManualPayment] = useState<CreatedIntent["direct_payment"] | null>(null);
+  const [manualPayment, setManualPayment] = useState<
+    CreatedIntent["direct_payment"] | null
+  >(null);
   const [manualTxHash, setManualTxHash] = useState("");
   const [lastPaymentStartedAt, setLastPaymentStartedAt] = useState(0);
   const [showSecondarySections, setShowSecondarySections] = useState(false);
@@ -1346,17 +1348,13 @@ export function AccountCenter() {
       const parsed = JSON.parse(raw) as PaymentRecoveryState;
       const userId = String(parsed?.userId || "").trim();
       const intentId = String(parsed?.intentId || "").trim();
-      const txHash = String(parsed?.txHash || "").trim().toLowerCase();
+      const txHash = String(parsed?.txHash || "")
+        .trim()
+        .toLowerCase();
       const createdAt = Number(parsed?.createdAt || 0);
       const expired =
         !createdAt || Date.now() - createdAt > PAYMENT_RECOVERY_TTL_MS;
-      if (
-        expired ||
-        !intentId ||
-        !txHash ||
-        !userId ||
-        userId !== authUserId
-      ) {
+      if (expired || !intentId || !txHash || !userId || userId !== authUserId) {
         clearStoredPaymentRecovery();
         return;
       }
@@ -1543,7 +1541,9 @@ export function AccountCenter() {
   );
   const hasQueuedExtension = Boolean(isSubscribed && queuedExtensionDays > 0);
   const displayExpiryRaw = isSubscribed ? totalExpiryRaw : currentExpiryRaw;
-  const reminderExpiryRaw = isSubscribed ? totalExpiryRaw : currentExpiryRaw || totalExpiryRaw;
+  const reminderExpiryRaw = isSubscribed
+    ? totalExpiryRaw
+    : currentExpiryRaw || totalExpiryRaw;
   const expiryInfo = parseSubscriptionExpiry(reminderExpiryRaw);
   const expiryFormatted = formatTime(displayExpiryRaw, locale);
   const currentExpiryFormatted = formatTime(currentExpiryRaw, locale);
@@ -1555,16 +1555,18 @@ export function AccountCenter() {
     : copy.noProSubscription;
   const showExpiringSoon = Boolean(
     isSubscribed &&
-      !hasQueuedExtension &&
-      expiryInfo &&
-      !expiryInfo.expired &&
-      expiryInfo.daysLeft <= 3,
+    !hasQueuedExtension &&
+    expiryInfo &&
+    !expiryInfo.expired &&
+    expiryInfo.daysLeft <= 3,
+  );
+  const showExpiredReminder = Boolean(
+    !isSubscribed && expiryInfo && expiryInfo.expired,
   );
-  const showExpiredReminder = Boolean(!isSubscribed && expiryInfo && expiryInfo.expired);
   const paymentFeatureReady = paymentReadyForRecovery;
   const canOpenCheckoutOverlay = Boolean(
     paymentFeatureReady &&
-      (!isSubscribed || isTrialPlan || showExpiringSoon || showExpiredReminder),
+    (!isSubscribed || isTrialPlan || showExpiringSoon || showExpiredReminder),
   );
   const subscriptionStatusTitle = showExpiredReminder
     ? isTrialPlan
@@ -1607,12 +1609,12 @@ export function AccountCenter() {
     });
   }, [
     isAuthenticated,
-      canOpenCheckoutOverlay,
-      planCode,
-      showExpiredReminder,
-      showExpiringSoon,
-      showOverlay,
-    ]);
+    canOpenCheckoutOverlay,
+    planCode,
+    showExpiredReminder,
+    showExpiringSoon,
+    showOverlay,
+  ]);
 
   // Points Logic
   const backendPointsRaw = Number(backend?.points);
@@ -2472,7 +2474,9 @@ export function AccountCenter() {
       }
       const created = (await createRes.json()) as CreatedIntent;
       const direct = created.direct_payment;
-      const intentId = String(created.intent?.intent_id || direct?.intent_id || "");
+      const intentId = String(
+        created.intent?.intent_id || direct?.intent_id || "",
+      );
       if (!intentId || !direct?.receiver_address || !direct?.amount_usdc) {
         throw new Error("manual payment payload invalid");
       }
@@ -2498,8 +2502,12 @@ export function AccountCenter() {
   };
 
   const submitManualPaymentTx = async () => {
-    const txHashNorm = String(manualTxHash || "").trim().toLowerCase();
-    const intentId = String(lastIntentId || manualPayment?.intent_id || "").trim();
+    const txHashNorm = String(manualTxHash || "")
+      .trim()
+      .toLowerCase();
+    const intentId = String(
+      lastIntentId || manualPayment?.intent_id || "",
+    ).trim();
     if (!intentId || !manualPayment) {
       setPaymentError("请先创建手动转账订单。");
       return;
@@ -2512,20 +2520,26 @@ export function AccountCenter() {
     setPaymentError("");
     try {
       const authHeaders = await buildAuthedHeaders(true, false);
-      const submitRes = await fetch(`/api/payments/intents/${intentId}/submit`, {
-        method: "POST",
-        headers: authHeaders,
-        body: JSON.stringify({ tx_hash: txHashNorm }),
-      });
+      const submitRes = await fetch(
+        `/api/payments/intents/${intentId}/submit`,
+        {
+          method: "POST",
+          headers: authHeaders,
+          body: JSON.stringify({ tx_hash: txHashNorm }),
+        },
+      );
       if (!submitRes.ok) {
         const raw = (await submitRes.text()).slice(0, 350);
         throw new Error(`submit tx failed: ${raw}`);
       }
-      const confirmRes = await fetch(`/api/payments/intents/${intentId}/confirm`, {
-        method: "POST",
-        headers: authHeaders,
-        body: JSON.stringify({ tx_hash: txHashNorm }),
-      });
+      const confirmRes = await fetch(
+        `/api/payments/intents/${intentId}/confirm`,
+        {
+          method: "POST",
+          headers: authHeaders,
+          body: JSON.stringify({ tx_hash: txHashNorm }),
+        },
+      );
       if (!confirmRes.ok) {
         const raw = (await confirmRes.text()).slice(0, 350);
         const lowerRaw = raw.toLowerCase();
@@ -2535,7 +2549,9 @@ export function AccountCenter() {
             (lowerRaw.includes("confirmations not enough") ||
               lowerRaw.includes("tx indexed partially")));
         if (maybePending) {
-          setPaymentInfo(`交易已提交: ${shortAddress(txHashNorm)}，等待链上确认中...`);
+          setPaymentInfo(
+            `交易已提交: ${shortAddress(txHashNorm)}，等待链上确认中...`,
+          );
           await pollIntentUntilConfirmed(intentId, authHeaders, txHashNorm);
           return;
         }
@@ -2627,17 +2643,17 @@ export function AccountCenter() {
           </div>
         </div>
         <div className="flex items-center gap-2">
-            {!showOverlay && canOpenCheckoutOverlay && (
-              <button
-                onClick={() => setShowOverlay(true)}
-                className="flex items-center gap-2 px-4 py-2 bg-yellow-500/10 hover:bg-yellow-500/20 border border-yellow-500/30 text-yellow-500 rounded-xl text-sm transition-all animate-pulse"
-              >
-                <Crown size={16} />{" "}
-                {showExpiringSoon || showExpiredReminder
-                  ? copy.renewNow
-                  : copy.upgradePro}
-              </button>
-            )}
+          {!showOverlay && canOpenCheckoutOverlay && (
+            <button
+              onClick={() => setShowOverlay(true)}
+              className="flex items-center gap-2 px-4 py-2 bg-yellow-500/10 hover:bg-yellow-500/20 border border-yellow-500/30 text-yellow-500 rounded-xl text-sm transition-all animate-pulse"
+            >
+              <Crown size={16} />{" "}
+              {showExpiringSoon || showExpiredReminder
+                ? copy.renewNow
+                : copy.upgradePro}
+            </button>
+          )}
           <button
             type="button"
             onClick={() => void onRefresh()}
@@ -2688,8 +2704,8 @@ export function AccountCenter() {
                 ) : null}
                 {billing.canRedeem ? (
                   <p className="mt-2 text-xs text-emerald-200/90">
-                    当前可用 {billing.pointsUsed} 积分抵扣 ${billing.discountAmount.toFixed(2)}，
-                    续费时会自动生效。
+                    当前可用 {billing.pointsUsed} 积分抵扣 $
+                    {billing.discountAmount.toFixed(2)}， 续费时会自动生效。
                   </p>
                 ) : null}
               </div>
@@ -2826,7 +2842,8 @@ export function AccountCenter() {
             <div className="mt-6 flex items-start gap-2 p-3 bg-black/20 rounded-xl">
               <Info size={14} className="text-slate-500 mt-0.5 shrink-0" />
               <p className="text-[10px] text-slate-500 leading-normal italic">
-                积分规则：群内有效发言（自动防刷检测）+ 每日首条发言额外奖励。每周一零点结算周榜，所有活跃用户均享参与奖。
+                积分规则：群内有效发言（自动防刷检测）+
+                每日首条发言额外奖励。每周一零点结算周榜，所有活跃用户均享参与奖。
               </p>
             </div>
           </div>
@@ -2843,9 +2860,9 @@ export function AccountCenter() {
 
         {/* Subscription Info & Paywall */}
         <div className="lg:col-span-12 relative">
-            <div
+          <div
             className={`grid grid-cols-1 md:grid-cols-2 gap-6 transition-all duration-700 ${canOpenCheckoutOverlay && showOverlay ? "blur-md grayscale-[0.3] opacity-30 select-none pointer-events-none" : ""}`}
-            >
+          >
             <section className="bg-white/5 border border-white/10 rounded-[2rem] p-6 space-y-3">
               <h3 className="text-sm font-bold text-blue-400 uppercase tracking-widest mb-4">
                 {copy.membershipDetails}
@@ -2968,11 +2985,13 @@ export function AccountCenter() {
                       Telegram 群成员价格
                     </p>
                     <p className="mt-1 text-[11px] leading-5 text-emerald-100/75">
-                      已验证群成员身份，当前会员价 {backend.telegram_pricing.amount_usdc ?? "5"}U。
+                      已验证群成员身份，当前会员价{" "}
+                      {backend.telegram_pricing.amount_usdc ?? "5"}U。
                     </p>
                     <div className="mt-3">
                       <span className="rounded-full border border-white/10 bg-black/25 px-3 py-1.5 text-[11px] font-bold text-white">
-                        当前价格: {backend.telegram_pricing.amount_usdc ?? "5"}U · 群成员
+                        当前价格: {backend.telegram_pricing.amount_usdc ?? "5"}U
+                        · 群成员
                       </span>
                     </div>
                   </div>
@@ -3125,7 +3144,8 @@ export function AccountCenter() {
                         手动转账（无需绑定钱包）
                       </p>
                       <p className="mt-1 text-[11px] leading-5 text-emerald-100/75">
-                        先创建订单，向唯一收款地址转账，完成后提交 tx hash 自动开通。请不要和钱包支付同时使用。
+                        先创建订单，向唯一收款地址转账，完成后提交 tx hash
+                        自动开通。请不要和钱包支付同时使用。
                       </p>
                     </div>
                     <button
@@ -3173,7 +3193,9 @@ export function AccountCenter() {
                         </p>
                         <input
                           value={manualTxHash}
-                          onChange={(event) => setManualTxHash(event.target.value)}
+                          onChange={(event) =>
+                            setManualTxHash(event.target.value)
+                          }
                           placeholder="0x..."
                           className="mt-1 w-full rounded-xl border border-white/10 bg-black/30 px-3 py-2 font-mono text-xs text-slate-100 outline-none focus:border-emerald-400/50"
                         />
diff --git a/src/bot/handlers/basic.py b/src/bot/handlers/basic.py
index 574a6b10..06d8ab45 100644
--- a/src/bot/handlers/basic.py
+++ b/src/bot/handlers/basic.py
@@ -4,11 +4,15 @@ import os
 from typing import Any
 from typing import Callable
 
+from loguru import logger  # type: ignore
+
 from src.bot.command_parser import extract_command_name
 from src.bot.io_layer import BotIOLayer
 from src.bot.observability import CommandTrace
 from src.bot.runtime_coordinator import RuntimeStatus, render_runtime_status_html
+from src.auth.supabase_entitlement import SUPABASE_ENTITLEMENT
 from src.auth.telegram_group_pricing import TelegramGroupPricing, TELEGRAM_MEMBER_STATUSES
+from src.utils.telegram_chat_ids import get_telegram_chat_ids_from_env
 
 _BASIC_COMMANDS = {"start", "help", "id", "top", "diag", "bind", "unbind"}
 _BASIC_COMMANDS = {"start", "help", "id", "top", "diag", "bind", "unbind", "markets"}
@@ -21,11 +25,13 @@ class BasicCommandHandler:
         io_layer: BotIOLayer,
         runtime_status_provider: Callable[[], RuntimeStatus],
         config: dict | None = None,
+        entitlement_service: Any | None = None,
     ):
         self.bot = bot
         self.io_layer = io_layer
         self.runtime_status_provider = runtime_status_provider
         self.config = config or {}
+        self.entitlement_service = entitlement_service or SUPABASE_ENTITLEMENT
 
     def register(self) -> None:
         @self.bot.message_handler(commands=["start", "help"])
@@ -56,6 +62,11 @@ class BasicCommandHandler:
         def _markets(message):
             self._dispatch(message)
 
+        if hasattr(self.bot, "chat_join_request_handler"):
+            @self.bot.chat_join_request_handler(func=lambda request: True)
+            def _chat_join_request(request):
+                self.handle_chat_join_request(request)
+
         @self.bot.message_handler(
             content_types=["text"],
             func=lambda message: extract_command_name(
@@ -246,6 +257,93 @@ class BasicCommandHandler:
         finally:
             trace.emit()
 
+    def handle_chat_join_request(self, request: Any) -> str:
+        chat = getattr(request, "chat", None)
+        user = getattr(request, "from_user", None)
+        chat_id = getattr(chat, "id", None)
+        user_id = getattr(user, "id", None)
+        if chat_id is None or user_id is None:
+            logger.warning("telegram join request missing chat_id/user_id")
+            return "ignored:invalid_request"
+
+        configured_chat_ids = {str(value).strip() for value in get_telegram_chat_ids_from_env() if str(value).strip()}
+        configured_chat_ids.update(
+            str(value).strip()
+            for value in [
+                os.getenv("POLYWEATHER_TELEGRAM_GROUP_ID"),
+                os.getenv("POLYWEATHER_TELEGRAM_TOPICS_GROUP_ID"),
+            ]
+            if str(value or "").strip()
+        )
+        if configured_chat_ids and str(chat_id) not in configured_chat_ids:
+            logger.info(
+                "telegram join request ignored for non-configured chat chat_id={} user_id={}",
+                chat_id,
+                user_id,
+            )
+            return "ignored:chat_not_configured"
+
+        try:
+            supabase_user_ids = self.io_layer.db.list_supabase_user_ids_for_telegram(int(user_id))
+        except Exception as exc:
+            logger.warning("telegram join request binding lookup failed user_id={}: {}", user_id, exc)
+            return "pending:lookup_error"
+
+        if not supabase_user_ids:
+            return self._handle_ineligible_join_request(
+                chat_id=int(chat_id),
+                user_id=int(user_id),
+                reason="unbound",
+            )
+
+        for supabase_user_id in supabase_user_ids:
+            try:
+                if self.entitlement_service.has_active_subscription(
+                    supabase_user_id,
+                    respect_requirement=False,
+                ):
+                    self.bot.approve_chat_join_request(int(chat_id), int(user_id))
+                    logger.info(
+                        "telegram join request approved chat_id={} user_id={} supabase_user_id={}",
+                        chat_id,
+                        user_id,
+                        supabase_user_id,
+                    )
+                    return "approved"
+            except Exception as exc:
+                logger.warning(
+                    "telegram join request entitlement lookup failed user_id={} supabase_user_id={}: {}",
+                    user_id,
+                    supabase_user_id,
+                    exc,
+                )
+                return "pending:entitlement_error"
+
+        return self._handle_ineligible_join_request(
+            chat_id=int(chat_id),
+            user_id=int(user_id),
+            reason="no_active_subscription",
+        )
+
+    def _handle_ineligible_join_request(self, chat_id: int, user_id: int, reason: str) -> str:
+        action = str(os.getenv("POLYWEATHER_TELEGRAM_JOIN_INELIGIBLE_ACTION") or "pending").strip().lower()
+        if action in {"decline", "reject", "deny"}:
+            self.bot.decline_chat_join_request(chat_id, user_id)
+            logger.info(
+                "telegram join request declined chat_id={} user_id={} reason={}",
+                chat_id,
+                user_id,
+                reason,
+            )
+            return f"declined:{reason}"
+        logger.info(
+            "telegram join request left pending chat_id={} user_id={} reason={}",
+            chat_id,
+            user_id,
+            reason,
+        )
+        return f"pending:{reason}"
+
     def handle_unbind(self, message: Any) -> None:
         trace = CommandTrace("/unbind", message)
         try:
diff --git a/src/bot/orchestrator.py b/src/bot/orchestrator.py
index 7658e2be..c4f0f7ba 100644
--- a/src/bot/orchestrator.py
+++ b/src/bot/orchestrator.py
@@ -103,4 +103,4 @@ def start_bot() -> None:
         started_count,
         len(runtime_status.loops),
     )
-    bot.infinity_polling()
+    bot.infinity_polling(allowed_updates=["message", "chat_join_request"])
diff --git a/src/database/db_manager.py b/src/database/db_manager.py
index b0754bba..b354cd8e 100644
--- a/src/database/db_manager.py
+++ b/src/database/db_manager.py
@@ -988,6 +988,38 @@ class DBManager:
                 return dict(row)
         return None
 
+    def list_supabase_user_ids_for_telegram(self, telegram_id: int) -> List[str]:
+        """Return all Supabase accounts currently bound to a Telegram user."""
+        with self._get_connection() as conn:
+            conn.row_factory = sqlite3.Row
+            rows = conn.execute(
+                """
+                SELECT supabase_user_id
+                FROM supabase_bindings
+                WHERE telegram_id = ?
+                ORDER BY updated_at DESC, supabase_user_id ASC
+                """,
+                (int(telegram_id),),
+            ).fetchall()
+            ids = {
+                str(row["supabase_user_id"] or "").strip().lower()
+                for row in rows
+                if str(row["supabase_user_id"] or "").strip()
+            }
+            legacy = conn.execute(
+                """
+                SELECT supabase_user_id
+                FROM users
+                WHERE telegram_id = ?
+                LIMIT 1
+                """,
+                (int(telegram_id),),
+            ).fetchone()
+            legacy_id = str((legacy["supabase_user_id"] if legacy else "") or "").strip().lower()
+            if legacy_id:
+                ids.add(legacy_id)
+            return sorted(ids)
+
     def search_users(self, query: str, limit: int = 20) -> List[Dict[str, Any]]:
         text = str(query or "").strip()
         safe_limit = max(1, min(int(limit or 20), 100))
diff --git a/tests/test_bot_basic_handler.py b/tests/test_bot_basic_handler.py
index 663026ad..b09e61d3 100644
--- a/tests/test_bot_basic_handler.py
+++ b/tests/test_bot_basic_handler.py
@@ -8,6 +8,8 @@ class DummyBot:
     def __init__(self):
         self.replies = []
         self.sent_messages = []
+        self.approved_join_requests = []
+        self.declined_join_requests = []
 
     def reply_to(self, message, text, parse_mode=None, disable_web_page_preview=None):
         self.replies.append(
@@ -41,6 +43,19 @@ class DummyBot:
 
         return _decorator
 
+    def chat_join_request_handler(self, *args, **kwargs):  # pragma: no cover - decorator stub
+        def _decorator(func):
+            self.join_request_handler = func
+            return func
+
+        return _decorator
+
+    def approve_chat_join_request(self, chat_id, user_id):
+        self.approved_join_requests.append({"chat_id": chat_id, "user_id": user_id})
+
+    def decline_chat_join_request(self, chat_id, user_id):
+        self.declined_join_requests.append({"chat_id": chat_id, "user_id": user_id})
+
 
 def _message(text: str):
     return SimpleNamespace(
@@ -127,3 +142,107 @@ def test_basic_handler_markets_rejects_channel_chat():
 
     assert len(bot.replies) == 1
     assert "仅支持私聊机器人查询" in bot.replies[0]["text"]
+
+
+def _join_request(user_id: int = 12345, chat_id: int = -100123):
+    return SimpleNamespace(
+        from_user=SimpleNamespace(id=user_id, username="ada", first_name="Ada"),
+        chat=SimpleNamespace(id=chat_id, title="PolyWeather Pro"),
+    )
+
+
+def test_join_request_auto_approves_bound_active_pro_user(monkeypatch):
+    monkeypatch.setenv("POLYWEATHER_TELEGRAM_GROUP_ID", "-100123")
+    bot = DummyBot()
+    db = SimpleNamespace(
+        list_supabase_user_ids_for_telegram=lambda telegram_id: ["user-1"]
+        if telegram_id == 12345
+        else []
+    )
+    io_layer = SimpleNamespace(
+        build_welcome_text=lambda: "WELCOME",
+        build_points_rank_text=lambda _user: "TOP",
+        db=db,
+    )
+    entitlement = SimpleNamespace(
+        has_active_subscription=lambda user_id, respect_requirement=False: user_id == "user-1"
+    )
+    handler = BasicCommandHandler(
+        bot=bot,
+        io_layer=io_layer,
+        runtime_status_provider=lambda: RuntimeStatus(
+            started_at="2026-03-12 00:00:00 UTC",
+            loops=[],
+            command_access_mode="group_member",
+            protected_commands=["/city", "/deb"],
+            required_group_chat_id="-100123",
+        ),
+        entitlement_service=entitlement,
+    )
+
+    result = handler.handle_chat_join_request(_join_request())
+
+    assert result == "approved"
+    assert bot.approved_join_requests == [{"chat_id": -100123, "user_id": 12345}]
+    assert bot.declined_join_requests == []
+
+
+def test_join_request_keeps_unbound_user_pending_by_default(monkeypatch):
+    monkeypatch.setenv("POLYWEATHER_TELEGRAM_GROUP_ID", "-100123")
+    bot = DummyBot()
+    db = SimpleNamespace(list_supabase_user_ids_for_telegram=lambda telegram_id: [])
+    io_layer = SimpleNamespace(
+        build_welcome_text=lambda: "WELCOME",
+        build_points_rank_text=lambda _user: "TOP",
+        db=db,
+    )
+    entitlement = SimpleNamespace(has_active_subscription=lambda *_args, **_kwargs: False)
+    handler = BasicCommandHandler(
+        bot=bot,
+        io_layer=io_layer,
+        runtime_status_provider=lambda: RuntimeStatus(
+            started_at="2026-03-12 00:00:00 UTC",
+            loops=[],
+            command_access_mode="group_member",
+            protected_commands=["/city", "/deb"],
+            required_group_chat_id="-100123",
+        ),
+        entitlement_service=entitlement,
+    )
+
+    result = handler.handle_chat_join_request(_join_request())
+
+    assert result == "pending:unbound"
+    assert bot.approved_join_requests == []
+    assert bot.declined_join_requests == []
+
+
+def test_join_request_can_decline_ineligible_user_when_configured(monkeypatch):
+    monkeypatch.setenv("POLYWEATHER_TELEGRAM_GROUP_ID", "-100123")
+    monkeypatch.setenv("POLYWEATHER_TELEGRAM_JOIN_INELIGIBLE_ACTION", "decline")
+    bot = DummyBot()
+    db = SimpleNamespace(list_supabase_user_ids_for_telegram=lambda telegram_id: ["user-1"])
+    io_layer = SimpleNamespace(
+        build_welcome_text=lambda: "WELCOME",
+        build_points_rank_text=lambda _user: "TOP",
+        db=db,
+    )
+    entitlement = SimpleNamespace(has_active_subscription=lambda *_args, **_kwargs: False)
+    handler = BasicCommandHandler(
+        bot=bot,
+        io_layer=io_layer,
+        runtime_status_provider=lambda: RuntimeStatus(
+            started_at="2026-03-12 00:00:00 UTC",
+            loops=[],
+            command_access_mode="group_member",
+            protected_commands=["/city", "/deb"],
+            required_group_chat_id="-100123",
+        ),
+        entitlement_service=entitlement,
+    )
+
+    result = handler.handle_chat_join_request(_join_request())
+
+    assert result == "declined:no_active_subscription"
+    assert bot.approved_join_requests == []
+    assert bot.declined_join_requests == [{"chat_id": -100123, "user_id": 12345}]