Reliance Bigtv — dth services

I am a subscriber of reliance bigtv for the past few years. I used to pay online for one year south silver pack in advance. This year, my payment date was due on oct.21, 2017. I transferred rs.2000/- using internet banking. I got the receipt for the same via email. But in the tv, they announced that reliance big tv is closing down and we can contact tata sky and our money will be transferred to them. I contacted tata sky and they came and changed the stb and took my reliance stb and the remote. I was told not to pay any money to activate the service. But i was asked to pay rs.230 to activate the same and i paid. I requested tatasky to get the amount of rs.2000 from reliance big tv. But only rs.1000 only was transferred to my tata sky id. I am not able to contact reliance big tv. I tried a few times. Nobody is answering the call.