African Bank Credit Card *****

On the 30 December 2022 i deposited R15000 into my African bank credit card using my Capitec saving account. 21 January 2023 i went to African bank branch to find out why i was not able to withdraw money from my credit card, they told me i have no money in account. Imposible because i deposited R1500 in December and haven't touch it since. I was told someone from transferred money from my credit card to my world card to FNB bank even bought R15 airtime. They called their call Centre, i was told to do an affidavit and submitted all the documents they required. I was told to give them 40days to investigate. 40 days passed i called them. The lady on the phone said they haven't received any documents from me. When she went to the system, she found them and said, "ooh sorry, we haven't sent them to the forensic." She told me to wait another 40 working days. I called them again after 40 days, i was told to be patient, its still under investigation. June 2023 came, still no call. I called them they transferred me to their forensic, Mr Jabulani Kabini. He told me he will have an answer for me by July 2023. I called in July, i was told his on leave. Since August 2023, he doesn't answer my calls. When i get the call from their accounts department they are also surprised that this case is still going on. I have stopped paying my credit card because it really hurts to pay for something you know you don't owe. January 2024 i called them, still they are still investigating the case. What really hurts me, is that i am worried about my credit score and the money that went out of my account just like that. Now its January 2024 African bank don't have an answer for me. Can someone please assist?