Airtel Friendz Chat — Making charges to my prepaid account

Address:

Delhi

I am being harassed by Airtel Friendz Chat with unwanted messages. Today I have received an SMS saying this service has been renewed with a charge of Rs.30. I am not interested in this crap nonsense, and would request that necessary action be taken with Airtel to have this amount re-credited to my prepaid account, and that this unwanted messages be stopped permanently. My phone number is [protected].