Vodacom *****ing my money. Continues to debit my account after cancellation of contract and *********** of resolving the issue.

I've been trying to cancel a contract at Vodacom for more than 2 years. When I eventually got the contract cancelled, Vodacom still proceeded with debit orders on my account. It took another couple of months, struggling to get them to stop the debit orders. After their 3rd promise that the debit orders will stop, I eventually put a stop order on my account to prevent further debit orders. Vodacom then listed my account as arrears on ITC. This situation has been escalated a few times and I've been promised countless times that they will process my refund for the ******* debit orders and clear my account of any arrear amounts. Yesterday, after I expressed my pain with the call centre manager, he promised me that it will be sorted before close of business. It still isn't resolved and they ignore my emails. I am busy reporting them to the National Consumer Commission as I've tried all avenues without success.