FNB's Service is useless

Good day, Towards the end of 2023 I had ***** on my account. Card was stopped and ***** reported to FNB. Only at the beginning of 2024 the transactions was reversed after visiting the branch (for the second time) and speaking to the Branch Manager. While at the branch the consultant from the ***** department telephonically advised that the bank cost will still be written back but this will take a few weeks. I keep on checking but the cost has not yet been written back. It does not help following up via FNB's secure chat as it is useless. I do not have time to go to the branch every time to follow up? How long must I wait until FNB assists?