Reliance Bigtv — it's been a 2 and half months and yet no no channels are coming. please resolve the issue

Address:

Salepali, Near hp gas godown, 767001

It's been a 2 and half months nearly after i bought the big tv set up box but no channels are coming. I request you to resolve the issue. Big tv customer care also not attending the phone calls. For the first 15 days i am able to watch all the channels but later on all hd channels are disconnected and then after some days they changed my pack automatically to something new pack that suit according to my state. After 2 or 3 days no channels are coming and its now been 2 months i am not able to watch tv.