bad customer service

I have just been to capitec bank germiston to deposit money. I was referred outside to the ATM and a lady by the name of Palesa Twala. When a mistake with the reference name was made and we showed her. Instead of apologising and helping me come up with ways to rectify it she became rude and said we should learn to read the screen. There was a long queue of people coming to the ATM and she insured she involves them by even saying to them she is used to people like us. In fact allot of things were said. It's appalling at the type of customer service we received from her. I dearly hope this will be dealt with accordingly and she embarrassed me in front of everyone there as though I am illiterate.