Varying monthly subscription amounts

I have made countless calls to the call centre, where consultants are at times not very helpful. MY account has been set to be owing R3000 rand for one month and then the other R2500, when u call to enquire on these high subscriptions as there is no package of this amount I'm told that the supervisor will call me back once they have listened to all the calls made to them and engage with finance and revert back to me. No one has called and its been 4 months now, every month my subscription increases as they know that we will pay because they will cut off my account. this is appalling from DSTV