I have spent the last 2 years trying to change my business mobile numbers - from Postpaid to prepaid. I sent emails daily to 14 different emails - nodal.[protected]@in.airtel.com, appellate.[protected]@in.airtel.com, [protected]@trai.gov.in, airtel.[protected]@airtel.com, Enterprise.[protected]@in.airtel.com, Gopal.[protected]@in.airtel.com, Content.[protected]@airtel.com, nodalofficer.[protected]@in.airtel.com, appellate.[protected]@in.airtel.com, [protected]@trai.gov.in, [protected]@in.airtel.com...