PAID ACCOUNT CONTINOUSLY SUSPENDED

We pay our account in advance as per conditions of the multichoice terms and conditions. However since 27 April 2015 our account has been suspended almost every day. Somehow they've billed us twice for one month and even after this were rectified we still experience the suspension periods over 7 times in one month. We have spend a lot of money on airtime to make calls to their call centre almost everyday. They will connect it after our call and the next day suspend it again. We even visited a dstv agent in our area, roy tronics in Brackenfell. They were however very helpful and understanding. But even after the note they logged onto their system, we still had the same problem. There were days and specific times we had NO TV AT ALL, WHILE OUR ACCOUNT WAS PAID IN FULL.