fix referrals and tariff name in key view

handlers/keys/key_view.py

@@ -291,14 +291,7 @@ async def render_key_info(
             traffic_limit = tariff.get("traffic_limit", 0)
             device_limit = tariff.get("device_limit", 0)
 
-    tariff_duration = ""
-    if tariff and tariff.get("duration_days", 0) > 0:
-        duration_days = tariff["duration_days"]
-        if duration_days >= 30:
-            months = duration_days // 30
-            tariff_duration = format_months(months)
-        else:
-            tariff_duration = format_days(duration_days)
+    tariff_duration = tariff_name
 
     response_message = key_message(
         final_link,

handlers/refferal.py

@@ -239,6 +239,9 @@ async def handle_referral_link(
             return
 
         user_exists = await check_user_exists(session, user_id)
+        if user_exists:
+            await message.answer("❌ Вы уже зарегистрированы и не можете стать рефералом.")
+            return
         if not user_exists:
             if isinstance(user, dict):
                 await add_user(session=session, **user)