Woolworths not able to clear blacklisting after the account has been settled for several Months

In 2024, I chose to assist my wife with a life changing surgery and ran into arrears with Woolworths. When the called, I asked them to give me a few months and I will rectify. In the interim, Woolworths blacklisted me, closed the account and on the APP and at the credit Bureau I am still listed as in arrears although they have been settled in full. The account has a zero Balance. Trying to get someone with reasonable intelligence on the phone is challenging. I will never do business with Woolworths in any capacity again, they were quick to blacklist me but cannot seem to reverse if after several months of the account being paid in full. They were asked not to, but they went ahead anyway. Why must I struggle like this to get my name clear. is there any way we can blacklist Woolworths for not doing their job?