DSTV customer care hopeless and non existant

I have had an absolute nightmare with the pathetic service received from DSTV customer centre. Im a client for over 15 years. Im a annual paying dstv client, therefore I qualify for one month free every year. Some idiot in dstv changed my subscription to monthly last year, and now dstv says that i owe them for the one month. I didnt authorize this!!!! They keep on telling me that they can see what caused the problem but nothing is being done. So every month now they keep on disconnecting me and I have to literally make dozens of phonecalls to them(each one over 30 mins) to get reconnected. I have dealt with several managers incl.. Edwin Bodibe, Subisiso Gumede and a few others. All have promised to sort this problem but nothing to date. its now gone about 3 months.