Mts — Internet speed issue

Address:	Jaipur, Rajasthan, 302017
Website:	www.mtsindia.in

HELLO SIR,
I am Manishb Purohit,
I have purchased a data card from the company with postpaid connection. of 683 monthly bill.
The promised me to give speed as 3G (up to 14 mbps) (they claiming in 3G plus), now from last 2 or 3 month i am paying rs. 683 as monthly bill but getting a negligible speed(not able to simple browse the webpage).
Raised the complaints 2 times, but they are saying that in your area our speed is restricted to 200kbps.
Kindly help me and do appropriate.