Woolworths has failed to handle and respond to a dispute from 2018!!!!!

On the 22 Dec 2018, I filed a Disputed Purchases request to Woolworths. Subsequent to that I was called once to be asked about it. Since then nothing has been done about it. When that dispute was filed, Woolworths issued me with a new store card, that we later found out that the card was duplicated and someone else used it to make purchases again. I filed a new dispute and that was handled very quickly. But the old dispute from 22 Dec 2018 is still sitting on my account as unhandled and I have been paying interest on this amount for all these years and I have not had any calls about this matter no matter how many times I call Woolworths to resolve this matter. I also found out a few weeks ago that Woolworths has cancelled my card and has issued a new card number for me, all without talking to me. I called a few weeks ago to speak to a manager to actually get this matter resolved and the people who spoke with me guaranteed that I would be called back and helped. This has not happened to date. We are already in February and this matter is not being handled with any urgency. This is highly disappointing and totally unacceptable. Per my calculations for a period of 5 years, this amount with an interest of 21% that amount of R4449.07 is now equivalent to R 11 539,74, will Woolworths credit the full amount and interest paid to date or are they going to continue ignoring me? Woolworths used to be a high end store back in the day, where they cared about the customer. They also had very well groomed staff whom they trained and serviced their customers. Currently, this is not the case and there isn't enough care used in handling these matters. I am very disappointed in the way I have been not helped with this matter.