Totally shocked

I recently took out a small loan with Nedbank. They had the incorrect debit order date on and I emailed them at the loans dept. No feedback. Then I phoned and the consultant (refused to give me his name or superior) told me he cant help me due to a system error on his side. I asked him to transfer me to his superior that could perhaps assist me from his system. He refused and the superior didn't want top talk to me. LOL All this hassle to set a proper DEBIT ORDER DATE so you as a company atleast can get paid - but you don't give a ****! This is shocking! If someone can contact ME URGENTLY - I cant go into the bank due to COVID and my WORK. NOW WHAT!!!