FNB debits accounts without customers consent and refuses to resolved!!!! Pathetic service!!!!

I do not bank with FNB however I have a credit card with them and the FNB debit order went off on 15th December 2020 as soon as I received my bonus payment. This was done without my consent as my usual date for debit orders is 25th December 2020 and I will still be receiving my salary on 24th December 2020. I had plans for that bonus money and when called FNB to reverse the debit order I was given attitude. First I was advised that its my banks fault, then I had to call my bank and call FNB back as it was in fact FNB's fault, then I was advised that I must go to my bank in the middle of a Covid pandemic and get a bank statement before the debit order can be reversed. I refused to do this and asked for a Manager to call me back however I have received no feedback to date. I was thinking of moving over to FNB in the new year and got a credit card with them to evaluate their services however I will be sticking with my current back due to their lack of professionalism and disappointing service.