Airtel mobile prepaid
Activation of services without any request by custome

I am the prepaid user of Airtel Mobile service,

My mobile no is 9869003723.

Airtel Company activates it's services like Hello tune, Cricket news etc and deduct my balances without my request to activate the services.

I had warned them more than five times by calling them on their customer care no. 121 & requested them not to activate such services.

But Airtel repeatedly doing the same, I am very much embrassed,

I had purchased life time validity card which is valid upto 2032.

Therefore I do not want to surrender my sim card.

Please suggest what can be done