[Resolved]  Reliance Prepaid Mobile — Cheating by cut charges o[censored]nrequestested service

I have a reliance Reiliance mobile with Prepaid connection.
They have cheated me twice by activate the caller tune ;sending the SMS and cut down money from my account saying that I have send the request of caller tunes activation.
What the customer can do in this cheating as we have nothing to say rather then requesting that it was not from my side.
The customer care excecutive straight away said their server has this information from user side .Even I was telling that i am informing you immediately as soon as i have got the SMS from your side and i dont need your caller tune please dont give this service to me and return my money but they said no money will be returned if once it was got cut.
I don't understand this type of cheating at all, how much RIM can earn by taking small amount of cheating from thier crores of customers.