Consumer Redressal

Dear sir/Mam, I have taken a dth connection from the airtel company. But they are harrasing me very much. I have taken a plan of economy sports plus, as per specified channels they are not giving full required channels. After a long complaining procedure they have started some channels but some channels are not started yet. There head office representatives has confirmed that the channels what I am asking for are in my plan list but not resolving the problem. Their representatives are calling again and again and disturbing me and my work. As I am not available whole time at home. Please suggest me what to do or take a quick and hard action against the company.