No service whatsoever. Pathetic and disgusting

In May 2023 I reported credit card ***** and cancelled the card. By July 2023, still no feedback from FNB's ***** department. In the same month the amount was somehow credited back to my credit card account and I took it that all was resolved. On 18 August 2023 I noticed that the same amount was again debited. I called and was told that it was the bank debiting me but that it would resolve itself. Later that day, two further debits with the same merchant reference. One amount the same as the ***** amount and the other a different amount. Called again on 21 August and spoke to Kevin Smith who told me the bank debited me in error but that it will be escalated to management to resolve. It is now the 27th of August 2023 and still no feedback. When calling one waits on the line for 12 minutes or more with no answer. I have been with FNB for 17 years and this total inaction and NO SERVICE is disgusting and apalling. I simply cannot believe how pathetic and useless FNB has been in dealing with what is a security breach. I want urgent feedback and I want those amounts reversed ASAP! You are forcing me to consider my legal options now and you will be sued for the legal fees! Thanks to this issue the account is in excess despite me recently making the required minimum payment.