Credit Card emptied without using my card for a purchase?

My credit was emptied with various transactions on the 2022/07/30 and I did not use my credit card within the last month for any online payments. I rarely use the card for online payments. After I visited a branch at the Grove Mall (ticket nr 104), directly after I noticed the unauthorised transactions, the assistant who helped me said he can only report the transaction and will call me back the next day after he reported the transactions as the ***** line was to busy. I have never received a call back from the assistant and revisited the branch a week later when I was finally assisted but have not yet received any on my money back.