Airtel — deactivate mobile office

AIRTEL has begun this Mobile Office service, which suddenly gets activated on any random phone number, without the consumer's consent and then starts deducting the customer's balance from his/her account spontaneously, after every 3-5 minutes. I am a victim. Since last month, this service had been activated, three times, repeatedly without even asking whether I need it or not. Every time I had to call Customer care 6-7 times a day to get the horrible thing de-activated but to no avail. It gets activated again and again. Right now I am suffering for the fourth time!