Hathway — Internet plan in not being upgraded

Address:

Pune, Maharashtra

I live in Hadapsar, Pune.I want to change my Internet connection plan from 600kbps unlimited to 2 Mbps and I have paid the amount of Rs 2573 for 3 months on 7 march 2014 now it is 11 April 2014 which is more than a month, still my plan has not changed.I have been contacting their customer care executives but they are giving me different reasons every time when I call them.I'm really frustrated talking to them they are just useless dumb fellows don't know what action to take. I just to stop service and want my money back that I have paid in advance.