FNB DEBIT ORDER REVERSAL

On the 02 June 2020 I went to FNB branch to reverse an unauthorised debit order of R1012.64 from my cheque account. I was told that the consultants do not have the the reversal functionality and I do it on my banking app under covid19. I was told after that to except the back funds to my cheque account in 24 hours, it has been 14 days of waiting and they haven't reversed that unauthorised debit order. I called the FNB Customer service but non of their consultants attend to the phone. I am switching banks now. I am tired of their pathetic service, the universe can rob me as well as the bank. How am I suppose to meet my monthly means when I told them to stop the ********** in my bank account and they do nothing.