MTS M Blaze
Speed

I am using M balze mobile internet service, which I purchased two weeks ago. Itr was tols that it is broadband and will be at high speed. But I am getting only 48 KBPS. It is much less than other service provider non broad band service which comes to 128 KBPS. Are they cheating the customer? How can I complaint to TRAI and get the refund for the same