Reliance Communications — reliance is generating bill without service and i am unable to contact customer care

Address:

Ahmedabad, Gujarat

I was mts dongle postpaid customer. My mts dongle no is [protected]since last 1.5 months internet service is totally closed. I contact mts customer care but cassette says that mts is now rcom network. Plz contact rcom. I received bill of 683 rs and 825 rs from rcom. I contact rcom customer care 3033333, and[protected] but cassette says that type your 10 digit datacard no. But when i typed my mts dongle no then cassette says that sorry invalid no. Now i don't know to whom should i contact. How close my mts dongle postpaid connection or how to stop them to send me the bill. Please help me.