Over Charge due to System Error

I recently found out that Multichoice have been charging me for a decoder/subscription that is not mine. Apparently it was a system error that activated this decoder. I have been paying for this decoder from the credit on my account and only found out by chance when calling their contact center today. <br> <br> My account is supposed to have a total of 1400 credit but consultants continue to tell me that this information is incorrect while I know for a fact that I have paid enough to be in credit with my account. <br> <br> Several consultants hang up on me when they start to get confused about what has happened.<br> <br> They try pursued people to pay via debit order and now you know why. They want to be able to take money from your account that doesn't belong to them. <br> <br> The service I receive is pathetic and now will be removing my bank details from my account. I can't believe they don't give a damn about you as long as they're taking money from your bank account!