Unauthorized debit card payment

There was an unauthorized card transaction on my business debit card. I was at the branch and was told to get a new card and to fill in a form and sent it to the unauthorized debit card payments department and they will refund the money after 1 week. It has been 2 month already with just emails saying thank you for my email they are busy with my request and I should follow up on 5 business days. How many should I get before I get my money back? I have never done a card payment through Microsoft * Microsoft of R 1399 and I have seen other businesses had exactly the same complaint about this. This is outrageous. If my account is not sorted I see FNB as not fit to handle my business and personal banking matters. I am n good client and hope they will consider this matter as urgent and feel like I am a worthy client.