DSTV incorrectly bills and does not correct account therefore *****ing your money

I downgraded my package in October. November DSTV suspended my services as they messed up on the monthly debit order and deducted to little. I was therefore charged an additional R50 for reconnection fees and a R180 for cancellation fees which I find unfair as it was not my fault that their accounts department messed up with their accounts. I complained about the additional charges and requested they be reversed as this short payment was totally DSTV's fault, however I had to pay up front to be able to use my decoder to watch Netflix. On 5 December 2023 I noted that TV had charged me R900 extra on my subscription and noted that they without my permission upgraded me to the premium package. When I enquired on the 5 of December I was told that the upgrade was requested on the 2 December - however DSTV already charged the higher price on the 1 December. Today is 11 December and I still have not had any feedback from DSTV on why they took my money without my permission.