Videocon D2H — No stable d2h connection from last 1 week worst in the world

Address:

Hyderabad, Andhra Pradesh

I had taken a new D2H connection from videocon 1 week back. After multiple calls to them there engineer has not shown up for fixing last 1 week no d2h connection . they are the worst provider in the world. please disconnect my connection and how to get the refund and how to teach to such cheaters who take money and then no responses from them for so long