Making money of their misstakes

My mother disconnected her dstv subscription that I paid for. We are in the same household and we decided that only need one subscription (mine) going forward as my son left home and we need one less tv to be connected. The installer made the changes and phoned on 6 January 2015. At the end of the month I noticed that the debit order against my credit card still went off. I contacted the customer care centre and they promised to investigate. As usual they wanted me to repeat the same information as per the earlier e-mail. But they also wanted bank detail - this is a credit card debit order and they should reverse the amount against the same credit card that it was deducted. This is a weakness in their internal controls. Now we need to provide my mothers bank detail over an e-mail - something that she is very uncomfortable with. <br> The worst is - and that is my main complaint - the following is a quote from the dstv response:<br> \The payment will take up to forty days to reflect on your bank account once the journal has been approved."<br> First they make a mistake"