Airtel — airtel dth disgusting services

My airtel dth is not showing all the channels since last week. I am unable to contact customer care. If it gets connected by chance they are saying technical error has occured, please call after some time. Such disgusting services by airtel dth. I am paying hell lot of money to watch all channels in my tv and what i am getting is nothing. Since the day plans changed as per new trai they are charging lot and even then they are not giving all the channels.