Rude cashier @ pick n pay

I was at the store in pick n pay Mthatha yesterday standing in the line a worker working for pick n pay decided to come stand right in front of the till not even asking us to purchase seeing that she was on lunch I then told her that the line is this side, she started swearing me telling me that she can buy wherever she wants here at pick n pay then I told her aslong as u move away from our line after that she went to purchase somewhere else and still had the audacity to come shout me telling me " you see I have bought" she was wearing fishflops and dragging her feet and made sure that she showed everyone her rudeness its a pity she wasn't wearing a name badge but shes was very rude n her attitude was pathetic we as customers know that pick n pay doesn't require this from staff I am furious n disappointed in picknpay mthatha