BIG TV — stopped working

I bought BigTV connection in April first week with 3 months subscription offered as free. However I am not getting any channels from May last week. Now I have recharged Rs.125/- on 14.06.2009 and still it does not get activated. In spite of our contacting the customer care telephone and operating the tv as per their instructions, we are not getting the channels. I made a BIG mistake by buying BIG TV.