Superspar brackengate supervisor needs training

Superspar brackengate in brackendowns, I was behind a lady who's card was not going through and they tried it twice. She expressed concern that if they tried again that her card could be locked. A colored woman supervisor with a monumental chip on her shoulder then told the lady she mustn't talk to her like "that" when the lady said "I'm going to be very upset if it blocks my card". The supervisor them went on a rant and when the customer walked out she was called a *****....if this supervisor had spoken to me like that, woman or not , she would have been given a "p"akkie "k"oekies