Consumer Redressal

Dear Sir, My Mobile no is 9830387432. I have been a Vodafone customer since the year 2000. I have just received a SMS from your company stating that my August ,2013 bill is of INR 6890.48. I am shocked to learn that the bill for this month is so high. My bill amount on an average never crossed INR 2500. How come and on what basis this month the bill is so high??? I have done very limited STD calls and even those are with the free limits. I did not had any International Roaming facility. I do not use Internet facility on my phone. Then how come the bill is so high??? All my SMSes for the month are well within limits as well. I have registered a complaint in your Call center as well . The service no for the same is 139223508. Please resolve the problem asap . Or I have to recourse to take legal action . Regards Rajesh Pachisia