FNB Personal Loans - Bad service

We paid a lumpsum of R60 000 on 8 February 2024 into our personal loan account to reduce the Installment before month end, we called FNB personal loans department the next day to restructure that amount, we were told that it takes 7 working days and it will be done, last week it still hasn't been actioned and we called in again, they just say sorry it hasn't been attended to but they will follow up, and just sorry but the debit order will run as per normal, even if it is their own fault, now again a couple of days later it still hasn't been restructured as yet. This is unacceptable and I feel as it is the banks own mistake, they must make sure that when the debit order run to return the funds. very disappointed in FNB!