Poor customer service

I’m booked in here and one of the waitresses Helen(Naledi) told us “**** you “ when we asked about the amount on the bill coz weren’t sure about the buffet amount. One of her colleague Keletso tried to stop her she pushed her and walked away saying we’re stupid..if this is the kind of service you give to black people it’s really shocking and disgusting as paying customers to be treated like trash .. she got so dramatic that everyone in the restaurant had to look at us like piece of rubbish