Videocon Industries — Package change request pending from 3 months

Hello
I have complained about my package change from 3 months and every time they are saying call on the month end day so we can change the package. When I can on the month end day they say we have changed the packaged and it will reflect next day but again I get the same old package with 30 day lockin and when I call their support they say it's lockin we can't change the package. They are repeating this cycle from 3 months and forced a packed on me which I don't want and I have much account balance so they are auto deducting the money.