Billed incorrectly, and call centre won't fix it!

Hi there,<br> <br> I was billed for DSTV this October due to some technical error as I suspended my account over a year before. I have now tried to get reimbursed for this mistake on four occasions with the DSTV call centre. Each time the operator says that they will fix the mistake, but week after week nothing happens and I keep having to call back. They have my calls on record but don't seem to care. They have even requested me to go to my bank to reverse the debit order, but as far as I am concerned it is their fault, so I shouldn't be inconvenienced like this. This is very poor service and I am convinced that someone in the call centre is not following out their job properly.<br> <br>