Poor customer service by front line staff

Poor Customer Service experience with Nedbank receptionist in Walmer Park. I went to Nedbank ATM for the first time to access the mobi money withdrawal. I then had a challenge to enter the numbers and next to the machine I saw a Nedbank employee and kindly requested her to help but as she was trying to help she exerted a bad attitude in such that i released her to go as her attitude was not pleasant, I had not forced her to help, she said no it's fine i said no because she looks tired, bored and she told me yes she was tired, she started complaining that she's been working since morning, which was not relevant and I insisted that she must leave i'm not going to stand her attitude. She insisted to help, I allowed her and when i was done, as she left she was grumbling, I then went to get her name but the bank had closed and as i stood there to say i need her name and surname, she gave me the most terrible attitude with her colleagues around her. She was not forced to help me and I am reporting this so the bank can know the negative attitude a front line staff showed to the public. I am not their client but the attitude showed by her is very terrible. This happened on 9 July 2020 between 15:10 and 15:25 at Nedbank Walmer Park.