Reliance Netconnect USB Modem — inapplicable guidance

Sir, i purchased netconnect from reliance pathankot .At the time of purchase i asked them if it works in kathua in jammu kashmir as most of the time i am their only due to my industrial set up.I have been told that as this is a postpaid system it will definitly work in jammu kashmir.What when i bought it and tried it it didn't work, i approached the dealer for help but he said he cannot do anything in this matter because reliance is getting started very soon in j&k so, wait till that time. sir, please tell me is this avalid excuse, now i want to return my card so that i could take another one of some other co. but that dealer is not helping me and simply harrasing me by sending the bills every month even that connection is not been activated so for, please help.