Gtpl Hathway — Data usage

Address:	Rajkot, Gujarat, 360005
Website:	www.gtpl.net

Hello, I am Abhitej Savjani, I am staying in USA, I had got GTPL Hathway connection for my parents in Rajkot in a good faith for their service. I had got a plan of 100GB for 1 year and made payment through cheque amounting to Rs. 2560.00 in 2nd week of December, 2015.
Yesterday when my parents were facing problem in using internet I checked the usage and it shows, the allotted limit is reached hence our internet is over. I tried contacting service provider with the same saying as my parents use internet over phone it is not possible to use this hefty volume in this short time. On checking usage online, there was few huge volume usage and I claimed to company to justify for the same. Since then I am trying to contact them over phone no executive comes to answer me. When I left mail for the same mentioning all the details they just replied saying kindly check usage online. We are cheated by service provider. My parents are back in India facing this problem and no one takes any accountability to help.
Bringing my complain here I may get some resolution from GTPL Hathway.