Consumer Redressal

Purchased a Internet Connection from MTS (Dongle) on First Week of Aug\'13, from the very beginning day it doesn\'t works, I have complain them several times but they don\'t solve the problem, instead of solving the problem they told that they found the device is running fine shows in their terminal. After 15 Days they send a SMS for Bill for Rs. 800/- (more/less). I told them that I pay your bill but you have to solve the problem fast. After 30 Days from the 1st SMS for bill comes, they send 1 more SMS for Rs.653/- & call me and my wife for several times that if you not pay the amount we will send you to court or can be more than this. Now they have told us that they have give a Fraud Case with case no. 201714. Mr.B.Rana is the lawyer(07838305489). Today 1 lady call me and told the they have give a case with a no.DL91017, with same Mr.Rana. I have called him for clarification but he does not response. NOW WHAT I WILL DO. PLEASE GIVE SUGGESTION OR DO WHAT EVER YOU THINK BEST.