My account is paid but they suspend my service

My DSTV subscription gets suspended weekly due to a billing error on their system. I spend hours on the phone to the call centre explaining and e-mailing proof of payment every payment are verified and then promised to be escalated to the billing dept. This issue is ongoing and they are just too *********** to resolve it. I keep reference numbers and they will always phone me back. No phonecall or even an attemp to resolve my issue. Every complain is escalated to a supervisor, although I cannot personaly speak to them or a manager. As a customer of Multichoice/ MNet for many years with no payment issues I am GATVOL for this *********** process. After six calls, reference numbers and e-mails they don,t have the decency to give me acall and resolve my problem. If I had an option I will move my Premium subscription to another provider. There are most probably thousands of other subscribers with this same issue!!!