customer care?!?

I went to the Sasol in Braamfischerville late one weekday night and the cashier would not sell me bread. She was screaming at me telling me that she won't assist me because i am wearing a gown in the shop. I proceeded to ask her where the sign was that no gowns are allowed, considering the fact that it was way late, towards midnight. I am not saying they should change their policy but, I did not appreciate her tone with me and the attitude she gave me. I was a regular at site, it is in my neighbourhood and it was convenient for me to fill up, and buy other things at their convenient store. Please train your staff.