Mts — MTS data card refund

Address:	600044
Website:	www.mtsindia.in/Tamilnadu

I ordered an mts data card ([protected]) on june 21st; although i had doubts about the connectivity and signal strength in my area (thirumudivakkam, chennai), the sales person assured me that the signal strength is good in my area and he already sold many connections there. believing his words i purchased the data card after paying inr 1500 + inr 100 for activation charges.
As promised the data card was activated the next day and i discovered the speed was around 40-50 kbps as against the promised "up to 9.8 mbps"
I complained with mts customer support and they sent a service engineer, who confirmed that signal strength is poor in my area.
I placed a request for refund of my money which is yet to be satisfied. so far there has not been a proper response from mts.