RCS investigation dept bad customer service

On 20/11/20 someone purchased with my game card for R5999.90 **********ly.I had my game card when I received the notification on my cellphone. I called the RCS number to report it and had my card blocked, they told me to go to the police station to get an affidavit done. I did the affidavit the same day and took it to a Game store to email it for me with a copy of my ID and the card details. The lady from Game called RCS to confirm if they have received the docs, which they confirmed receipt of the documents and advise it will take 21 workings days to receive feedback. I have been doing follow ups with no luck since from December, 21 days have come and gone still waiting to hear what is happening. This is so frustrating dealing with a company that just does not care about customer care. I cannot be paying R6000 for a purchase I did not make.