Wrong debit date

I’m really over auto and general at this point, I’m really annoyed. They debited me on the 19th and my salary date is the 20th I called in last month to change it and I received a new debicheck mandate that I accepted, but still this month they debited today on the wrong date, my account is on a minus and I will need to pay for fees for an overdrawn account, you better pay me for the R169 that I will incur for these overdrawn fees.