CHANGING DEBIT ORDER DATES AS THEY PLEASE

Despite my loan agreement with FNB which very CLEARLY states the debit order date to be the 25th of each month, they have now for the second month processed the debit order on the 20th. Furthermore, on the 13th already I phoned them about this to inform them that they need to change it. They had all kinds of excuses, but not a single reason was given as to why it was changed to the 20th instead of the 25th. I made it very clear that I get paid on the 25th, but that concept seems to be too much for them to grasp. After yet another 20 minutes plus phone call on that day, I received a sms on Tuesday 14/6/2022 at 13:33 stating that the instalment will be ***X as from 25/6/2022. Thus assuming that they have corrected THEIR error. Guess what - they didnt. Surprise surprise this morning the debit order went off on my account. Now honestly - what type of bank are they that can't keep to their own legal agreements, that can't explain their own mistakes they've made and even worse - can't fix their own mistakes. I bank with Standard Bank as well, and not ONCE have I had the issues that I have with FNB.