Airtel — channels added without permission and no customer support

After the trai regulations i chose my channels which are around 52 and the ncf should be 130 but airtel keeps on adding 'invisible' channels and the total channels rose to 155. I'm suffering this for more than a month and i've been calling the support but no help is done. They keep on making excuses and now i'm done and want to sue airtel for this. I want to file a case against airtel digital tv. I will be greatful if you can help me out. Thank you.