[Resolved]  Airtel Prepaid — ec recharge has been cancelled

I have recharged on 12 oct 2009 for Rs.155 through EC. I received sms as successfully recharged. But on next day this amount has been taken back from my account. I called customer care but they replied as "the dealer, who did EC from his number, later on send from same number to stop this recharge. So u have to contact the dealer only". When I approached the dealer he say that once they recharge they cannot stop it. And said u have to ask customer care. Now both of them says each other. I dont know what happened. Can anyone say where shall i complaint about this? Or any give any complaint number?