nedbank does not consider clients at al

I emailed nedbank on 6 May that I would be late with bond instalment due to circumstances. I only had enough money for 4 smaller debit orders. nedbank went ahead and took all my money which meant 4 unpaid accounts, 4 bad credit listings. nedbank does not consider clients at all. I have been a nedbank client for 20+ years and it means nothing to them.