Trai — pressured for taking more that 100 tv channels

Address:

Gautam Buddh Nagar, Uttar Pradesh, 201304

I am customer for siti network i called them regarding my tv pack and checked online they already have added 100 free to air channels to my account, i asked them to allow me to edit i don't want all 100 channels you have selected there customer care tell me to contact local cable operator for that i called him he told me that it is fixed from siti network end he can't do anything. But question is that why they are doing so, because it will increase my network capacity fee from 130 to 150 if i select 1 more channels above 100 which is fixed by siti network. That means if i select any of paid channels i have to 20 extra on that. As well as there website does not have any option to alter there fixed channels. Why should i pay 20 rupees extra i don't need 100 useless channels.