Bad service accounts department

Since end of April 2015, I have been disconnected every month, due to the fact that DSTV says my account is in arrears. I e mailed proof of payment to payments, unallocated payments and unallocated excalations. As well as to supervisor Rolan Nicar, spoke and e mailed it to several individuals, 12 persons to be exact. Every time they are very friendly, and appoligises, and reconnect my services. But every month it is the same thing, I pay, I get got of, I phone, they appoligise, and thats it. If I go to self service, some one else is on my name, not my account number, my question, here I am again this morning, no DSTV, and again I have to call in. What else can I do??