Bad service

I was at pick and pay Kempton square in Kempton park, and a cashier gave me a bad attitude she was even swearing at me she is even said I can report her she doesn't care.so this how the story started we we on the que where where there is two cashiers on the same row them customers where going to the next cashier then I was standing there confused and I polity asked her if her till is not working and then she was why are you standing her and give me your staff so that you can pay and I was like I'm asking you nicely because I can see other customers passing ,then we started exchanging words and she said I can report her she doesn't care.her name is winnie Selepe