Dstv Nonsense

I've been paying R400 for my Dstv account, I now pay 480 rands for what I dont know ,they decided to put an extra 80rands to my account I tried calling them I spoke to a robot I hung up, I tried their WhatsApp line still it sucks it is the Most unhelpful and useless thing one can rely on, the Chat robot answers to something that you never asked, I then checked for my subscription so I can make cancelation unfortunately there's no any unknown subscription. So the question is why I am now paying 480rands for my account and who agreed to that amount? It has been 3 months now, so I'm sick of ****s and I'm not prepared to be entertaining one especially from the Dstv