MTS / Sistema Shyam TeleServices [SSTL] — Cancellation of mts postpaid data card connection

Address:	600041
Website:	www.mtsindia.in

I was using the mts data card for almost 2 years. 6 months before i got a chance to shift my house to thiruvanmiyur, chennai. The real issue started once after shifting there. It is in 3rd floor, i never get transaction rate reaching mb's. I complaint about that and after that even it was not resolved. So i stopped using it often (Not as before). I have escalated this issue several times but no point of talking to them. I was not using the data card since it was broken (Software driver problem) for past one month, still i keep getting bills. I never like this service so trying to close my account. I have logged in ticket in their forum, but no use. Help me to close my account.