FNB slow on repaying monies ****** after ****.

My credit card was ****med. After I received no feedback from them after I reported it and a case was lodged, I turned to hellopeter. FNB then sent me a reference number: ***NF and asked for the details of the ********** transactions. I supp**** it all on 18 May 2021. After that I heard nothing from them. The ********** transactions came to R3860.83 and it was done between 14-16 April 2021. Except for not refunding my money, this money is drawing credit card interest. Why is there no action from there side, when it obviously was a safety glitch(the card was in my purse -very far from where the ********** transactions were made).