Risk & bad service

On the 4th December 2021 I visited Nedbank branch in Attlyn mall doing a card collection. When I got to the teller she asked me to call out my ID number, I asked her if she was being serious that I call out my ID number, I asked her same question twice & she repeatedly said yes. She changed her tune & said you can give me your ID book. I gave her my ID book & she continued doing her thing on the computer. She instructed me to put my thumb on the finger print device, that time I'm already infuriated by her attitude but I chose to keep quiet, my thumb was on the tool for a good few minutes, I asked her if we're done & she said to me the system is till reading my print. She triggered my fuses by saying to me "Why are you being so grumpy"? I said to her you will not speak to me in that manner, in the 1st place you said I should call out my ID number in a bank full of people, I told her that I'm going to report Nedbank as it's putting their clients at risk. This is a dangerous month where ********** are on the look out to cash out monies of vulnerable people. This lady should know better, how was she trained? Did she even go through an induction for customer service? As I was going on she gave me a whatever sign with her body language not acknowledging the huge error that she made, worse calling me grumpy. I'm not going to let this slide, the bank Ombudsman will know about this. This bank teller has put Nedbank's name into disrepute she doesn't deserve to be the face of Nedbank.