frustrated customer

Just came from FNB their service is so poor, sitting there since 9am waiting in a line only to hear the branch cant help reversing a debt order. I must do it on my app then to hear the amount is to big I must call the number at the back of my card, did that and no joy high volume. I had to go back a half hour later call again and then I was told I must wait for 24hrs after the debit order before they can help me, so yes bad service