Rude cashier

Vorna Valley Superspar is generally a nice place to shop unless you get assisted by Rejoice. She is so rude its irritating. I have been assisted by her a number of occusions and she keeps getting comfy with her rudeness. Today she scanned 2 dougnuts followed by a bath stone of which I wasnt sure of the bath stone price. So because she was at the less items tills I could not see the screen to confirm the price. As soon as I turned my head up I saw R27, so I asked her: Is the bath stone R27? She ignored me and continued to ask: Plastic? I repeated myself: Is the bath stone R27? She then went on to say: What does the screen say? I then said: Come around and see what I can see from my side. I then asked her if me asking is a problem, she rolled her eyes and went on to explain why its R27. She is rude and arrogant, she does not have customer service skills!!