FNB not good

17 Dec2020 i went to the branch for debit orders taken of for January 2021 that's not in my Dec budget. The helped me phone the department and i spoke to a lady adviser which said it takes 24 hour and the reversal of all three debit orders will be done. The afternoon only one debit order was reversed. 18 Dec2020 i went bac to the bank spoke to another lady who promised it would go through any moment. The in the afternoon i phoned again and spoke to a gentle men who did everything over and said 24 hours. It's Monday 21 Dec 2020 and there is still nothing. The calls are costing a fortune as you have to hold for 35 min minimum. How can FNB just take money for the next month without clearing it with the customer and i'm not the only person it happened to.