Billing....What a JOKE. Credit balance..getting disconnected every 5 DAYS!!!!!

Our 2 year fixed price plan ended in April 017. Ever since then our account is a mess. DSTV never adjusted the premium after April...they only realized in October!! We paid the difference and they increased the debit order. Then after that got another message saying we need to pay 178 to get connected again. I paid R200 they "fixed"the problem. Now we get disconnected every 5 days!!!!! Every time they tell us we have a credit balance they dont understand. They then say there is 2 accounts...one getting all the invoices and the other one all the payments. Every time we need to phone to get reconnected and we hear the same story....the inquiry is escalated. The supervisor is informed then that is it. In 5 days exactly the same thing, disconnected phone..reconnect..Escealated....For more than a month and more than 6 phone calls and a visit to customer care centre!!! What does one need to do???!!!!!