Trai — they not refunding money

My set top box id is connected with another 4 connections, so i have recharged for 12 months by seeing offer running on my id and in offer no where is mentioned or displayed that this offer will be apply on main connection only and i have recharged of 2794 rupess. For 12 months and remaining connected set top box is suspended only main connection is running
So i wanted my money back.. And i have registred complaint many times but they are not resolving my complaint and not giving back my money