i got banned two times now, i thought maybe my code have some problem.
my code:

from telethon import TelegramClient #importing telethon
#declearing api id and hash (you should put yours here. you can get them from my.telegram.org):
name = ""
phone = ""
api_id =  
api_hash = ''
password = ""
bot_token = ''
channel_id = "PrivateVPNs"
client = TelegramClient(name,api_id,api_hash)

    
async def main():
    await client.start()
    await client.connect()
    if not await client.is_user_authorized():
        await client.send_code_request(phone)
        await client.sign_in(phone, input("enter code:"))
    chats = client.get_messages(channel_id, 15)
    print(chats)
    

        
with client:
    client.loop.run_until_complete(main())

couldn’t find a soloution…