Mts India Delhi Ncr — Regarding bill issue

Address:

Ghaziabad, Uttar Pradesh

Hi, my name is ramesh rawat i used mts wifi dongle from last 1 year, my mts no is [protected] as it goes well untill the bill of august 2015 came, as everytime my monthly bill was rs 1139 including all texes, and i pay it every time but this time they send me a bill of rs 1156 and mentioning that a vas service is activated on my mts dongle, as i didnot use such kind of service in my dongle i just use my dongle to surf internet, i also complaint it to the mts customer care but got no solution and also they closed my complaint by saying that i activated the service by my own, as i never activate this service nor even on my cellphone using other operator so why i use these bloody cheap services on my dongle, they said that i have to pay this bill of rs 1156, as it is not just about the 17rs, it about to humilate customer, kindly help me in this case