Bad service

On the 22 of September 2018 I visited the krugersdorp branch to activate my internet banking. The lady who assisted me wa very rude (she had no name tag so I don't know her name) because I am not a South African citizen she kept talking to her colleague in Tswana how much she hates dealing with non citizens and how ******** they are, I guess she did not know I understand Tswana. Her service was very poor and slow and she kept asking her colleague for assistance. I am so disappointed I believe if I am a customer of the bank I need to be treated equally even if I am not a citizen. Even if she has encountered ******** non citizens not all of us are. I am a hard working professional who is in the country legally and I am paying all my taxes . This kind of treatment is un acceptable.