diff --git a/api/index.py b/api/index.py
index 6bd09be..164a019 100644
--- a/api/index.py
+++ b/api/index.py
@@ -15,12 +15,15 @@ BUTTON_OK = os.environ.get('BUTTON_OK') or 'Ok'
 BUTTON_NO = os.environ.get('BUTTON_NO') or 'No'
 
 newcomers = {}
+app.config.REGISTERED = False
 
 
-@app.route('/', methods=["GET", "PUT", "OPTIONS"])
+@app.route('/', methods=["GET"])
 async def register(req):
-    r = register_webhook(WEBHOOK)
-    print('\n\t\t\tWEBHOOK REGISTERED\n')
+    if not app.config.REGISTERED:
+        r = register_webhook(WEBHOOK)
+        print(f'\n\t\t\tWEBHOOK REGISTERED:\n{r.json()}')
+        app.config.REGISTERED = True
     return json(r.json())
 
 
@@ -29,52 +32,73 @@ async def handle(req):
     print(req)
     try:
         update = req.json
-        # print(update)
+        print(update)
         msg = update.get('message', update.get('my_chat_member'))
-        if str(msg['chat']['id']) == CHAT_ID:
-            print(f'message in chat')
-            if 'new_chat_member' in msg:
-                chat_id = str(msg['chat']['id'])
-                member_id = str(msg['new_chat_member']['id'])
-                print(f'new member {member_id}')
-                newcomers[member_id] = 'newcomer'
-                reply_markup = {
-                    "inline_keyboard": [
-                        [
-                            {"text": BUTTON_NO, "callback_data": BUTTON_NO},
-                            {"text": BUTTON_OK, "callback_data": BUTTON_OK}
+        if msg:
+            if str(msg['chat']['id']) == CHAT_ID:
+                print(f'message in chat')
+                if 'new_chat_member' in msg:
+                    chat_id = str(msg['chat']['id'])
+                    member_id = str(msg['new_chat_member']['id'])
+                    print(f'new member {member_id}')
+                    reply_markup = {
+                        "inline_keyboard": [
+                            [
+                                {"text": BUTTON_NO, "callback_data": BUTTON_NO},
+                                {"text": BUTTON_OK, "callback_data": BUTTON_OK}
+                            ]
                         ]
-                    ]
-                }
-                welcome_msg_id = send_message(
-                    chat_id,
-                    WELCOME_MSG,
-                    reply_to=msg['message_id'],
-                    reply_markup=reply_markup
-                )
-                newcomers[member_id] = 'newcomer' + welcome_msg_id
-            elif 'text' in msg:
-                chat_id = str(msg['chat']['id'])
-                member_id = str(msg['from']['id'])
-                if member_id in newcomers:
-                    if newcomers[member_id].startswith('newcomer'):
-                        answer = msg['text']
-                        if BUTTON_OK.lower() in answer.lower():
-                            del newcomers[member_id]
-                        else:
-                            delete_message(msg['message_id'])
+                    }
+                    r = send_message(
+                        chat_id,
+                        WELCOME_MSG,    
+                        reply_to=msg['message_id'],
+                        reply_markup=reply_markup
+                    )
+                    welcome_msg_id = r.json()['result']['message_id']
+                    print(f'welcome message id: {welcome_msg_id}')
+                    newcomers[member_id] = f'newcomer{welcome_msg_id}'
+                elif 'text' in msg:
+                    chat_id = str(msg['chat']['id'])
+                    member_id = str(msg['from']['id'])
+                    if member_id in newcomers:
+                        print(f'new member speak {msg["text"]}')
+                        if newcomers[member_id].startswith('newcomer'):
+                            print('watched newcomer')
+                            answer = msg['text']
+                            if BUTTON_OK.lower() in answer.lower():
+                                print('found answer')
+                                print('deleting welcome msg')
+                                r = delete_message(CHAT_ID, newcomers[member_id].replace('newcomer', ''))
+                                print(r.json())
+                                newcomers[member_id] = None
+                            else:
+                                print('deleting some message')
+                                r = delete_message(CHAT_ID, msg['message_id'])
+                                print(r.json())
+                    else:
+                        print(f'old member speak {msg["text"]}')
+                        print(newcomers)  # debug only
         if 'callback_query' in update:
-            print(f'callback_query')
             callback_query = update['callback_query']
             chat_id = str(callback_query['message']['chat']['id'])
             if chat_id == CHAT_ID:
+                print(f'callback_query in {CHAT_ID}')
                 member_id = str(callback_query['from']['id'])
                 callback_data = callback_query['data']  
                 if callback_data == BUTTON_NO:
-                    ban_member(member_id, CHAT_ID)
+                    print('deleting welcome msg')
+                    r = delete_message(CHAT_ID, newcomers[member_id].replace('newcomer', ''))
+                    print(r.json())
+                    newcomers[member_id] = None
+                    print('wrong answer')
+                    r = ban_member(CHAT_ID, member_id)
+                    print(r.json())
                 elif callback_data == BUTTON_OK:
-                    del newcomers[member_id]
-                    delete_message(CHAT_ID, newcomers[member_id].replace('newcomer', ''))
+                    print('proper answer')
+                    r = delete_message(CHAT_ID, newcomers[member_id].replace('newcomer', ''))
+                    print(r.json())
+                    newcomers[member_id] = None
     except Exception:
         pass
     return text('ok')
diff --git a/tgbot/rest.py b/tgbot/rest.py
index 33989f2..93fecf8 100644
--- a/tgbot/rest.py
+++ b/tgbot/rest.py
@@ -7,15 +7,16 @@ apiBase = f"https://api.telegram.org/bot{TOKEN}/"
 
 
 def register_webhook(url):
-    return requests.get(
+    r = requests.get(
         apiBase + f'setWebhook?url={url}'
     )
+    return r
 
 
-def delete_message(cid, mid):
-    return requests.post(
-        apiBase + f"deleteMessage?chat_id={cid}&message_id={mid}"
-    )
+def delete_message(cid: str, mid: str):
+    url = apiBase + f"deleteMessage?chat_id={cid}&message_id={mid}"
+    r = requests.post(url)
+    return r
 
 
 def send_message(cid, body, reply_to=None, reply_markup=None):