we have a 2 postpaid mobile connections with you. Mobile Number is 9371639000 & 9371637000. In one of this number 9371637000 you have activate the Callertune & charge RS 30 for this. We don't want it & we never told you to activate the Callertune. We told your one of executive to deduct that Rs 30/- & we have paying your bill but anything happen in this matter.