DSTV turned off due to non downgrade.

I called the call center on the 25th of December to downgrade from premium from January month , and they agreed to do it. At the end of February my service was suspended, when i phone to inquire they acknowledged that it was their fault for not down grading and will sort it out on their side. then the service was restored on the same day. then again this month the same story happened but now after 3 phone calls and a visit to the customer care they are now telling me that it is not their fault and they cannot do anything about the outstanding bill and I must pay the money before they can reconnect again. <br> So i need to know how this payment of R900 keeps re-appearing on my account and I have to waste my airtime all the time to try and get this thing sorted out while i am still on compact and not premium.<br> <br> Thanks;<br> Tebogo L<br>