Unauthorized transactions.

On the 26th nov i woke up to some unauthorized transactions in my account, they took like +-R550. I then rush to the branch for them to assist me and maybe reverse the money back to my account as i was Goin home and that money was planed for my petrol Goin home. I was told that unfortunately the funds could not be reversed as they need to cunduct an investigation. And further advised that i will be charged for each transaction R160.. By the way it was 3 transactions. And for them to start investigating i need to close my account and for the card replacement i will be charged 70.. I was also told that the process take 7-14 working days. Till to day i haven't had anything from them. I visited the branch and still there is no sign of my money coming back. I was told the person "dealing" with the case hasn't done any update..