Mts — MTS Service is harassing me

Address:

Ahmedabad, Gujarat

I have lost my MTS number [protected] and then asked for closing same number and then had chat with MTS customer care number and told me pay last bill and he adviced me to send the mail to MTS customer care for closing this [protected] and at same time I called MTS rep for buying dongle and I paid money for new connection and I got this current [protected] curenlty using and paying regular bills for it but still I am getting bill for old number [protected] even after I have allready paid last bill of Rs 419/ sent to me . MTS is solving any isse related with it and providing the worst service with me . How do solve issue and how can trust now MTS . I want to close my current dongle [protected] but I do not have trust is there any way to get relieved form MTS