Airtel — automatic activation of services on my airtel no

Address:

Ujjain, Madhya Pradesh, 456010

I am using airtel and on[protected] a service FUNNYZONE is automatically activated on my number and 25 rs is cutted from my main balance. And again on[protected] DESITUBE service is activated and again they charge for it.
My complain is stop activation of this services and return my 25 rs to my airtel no as soon as possible.
Thanks