Poor customer service

I paid my Dstv subscription a day late this and WOW it has been hell, Every second day I get disconnected and Multi-choice wants me to pay another R150 for the same month after I have sent proof of payments a few time and called the Call Centre a few times explaining that I have paid and every consultant asked for the same POP which I sent, So now my question is do I have to pay R150 every week because I paid late this month, It feels like sometime is intentionally going into my account to disconnect my services to top it all off the last time I called to query the same issue the consultant transferred me to the cancellation department and I was confused and wondering if this is Dstv's way of saying they don't need me a customer anymore or it was an honest mistake? My big question is why am I disconnected when I have paid and sent the POP a few time and why does the amount keep changing