BILLED FOR SHOWMAX I DON'T USE!!!

I am disappointed with Multichoice/DSTV after being their customer for so many years. Last year I was on DSTV Premium and at the beginning of January I downgraded to Compact Plus without any problems. Yesterday when I was busy trying to upgrade back to Premium I realized that the amount of money that was debited for my account had an extra R99 that was charged. I contacted DSTV Care via Twitter and was assisted by an agent with the initials ‘PMN’ who told me that my account was charged an extra R99 for Showmax, which I don’t use and have never used before. I tried to explain this to the agent but was told I’d have to sort it out with the ‘Showmax team’. To cut a long story short I ended up having to ask the agent to cancel my DSTV subscription for the end of this month and to cancel my debit order because I don’t understand why I was charged for Showmax I don’t use and why I have to sort it out with the Showmax team that I don’t know, when my account is with DSTV and not with Showmax and my bank account was debited by Multichoice and not Showmax. Sadly it’s not the first time this is happening, last year August I was charged an extra R99 because they said I had another decoder with DSTV Access, this was luckily reversed because after investigation they realized that there was no other decoder with DSTV Access.