Terrible service from absa

Absa collections team is useless, I was incorrectly debited on the 01.06.21 also the incorrect amount the first debit agreed was the 01.07.21, I spoke to 5 different people from the 02.06.21 all of them said a refund will be done in 2 to 3 working days to date I have not received my funds when you call them no one knows what's going on I will be changing banks absa service is gone to the dogs