Worst servive ever

Hello today i was served by a lady named Tshego Mogapi at shoprite liquer at Notham plaza with a disrepectfull attitude , as a castomer i had to ask her questions based on the specials they had for the day..but she answered my with attitude sain" if u can't understand this liflet how would you expect to understand it too then she ddint even tell me that shes shot of change i had to figure myself as i saw she was helping other when i asked she then said "wait 4 your change im waiting for coins" how do we continue buying there with such erogant servise