billed for an explora I dont have

In Feb 2018 I paid my DSTV account like I usually did for R479.50. A few days later I got an sms from DSTV to pay R149.00 or my services would be cut. Which I promptly did. I called DSTV a few days later to ask about the R149 and what it was for. It was for an explora that I apparently took out in 2016. In 2016 there was an issue about an explora and I thought the matter was put to bed, apparently not. I told the guy on the phone that I didn't have an explora and he should credit my bank account with my refund. He said he would the same day but he didn't. I few days later DSTV sends me a threatening sms to pay the R149 due or my services would be cut. I called again and asked the guy to please refund me my R149.00 and stop pestering me about an explora I don't have. When I go online on my account it shows that I only have a PVR, are you seriously telling me that you are not getting the same information from your side? Yesterday, Saturday the 17th March I called again and talked to a condescending woman who was not interested in helping me but proceeded to make me feel stupid. Well I am not stupid and you should really look at the quality of the people you employ. You have cut off my PVR functionality, I cannot record anything, cannot watch any of my recorded shows, for what?? Please put this matter to rest on you saying that I have an explora and stop sending me stupid smses. And reconnect my PVR functionality, Having an almost total monopoly on the market doesn't mean that you have to treat me like ****. FOR THE LAST TIME I DON'T HAVE AN EXPLORA. Surely you have someone competent enough to resolve this. AND RECONNECT MY PVR FUNCTIONALITY!