extremely rude cashier

On Saturday 26th of Aug my 2 sisters and I visited a woolies store(uMlazi Mega city store) and we were not aware that the store closes at 5pm until one of the ladies who work there asked if she could assist us and then we realized that the shop had closed (this was just 10mins after 5pm) when we got to the till there were 2 cashiers working, one was male and the other was female( the male cashier was polite ) however the female cashier was very rude. Her name is ThobileM she first started by not greeting while I was paying ( my sisters and I were still chatting about how we hadn't realized that the shop had closed)then she started making rude comments about how we had kept them at the store after 5. My sisters and I were paying separately so after I was done paying my other sister was next on the queue but instead this ThobileM rudely sent my sister back and shouted and called forward the gentleman that was behind my sister on the queue and instead assisted him. As if that wasn't rude enough my sister ended up paying to the male cashier and while my sister was still paying the same ThobileM lady was still making rude comments and even said to the gentleman she was assisting that "have a nice day and please do come back next time" the male cashier asked why she had said that, her response was " yes he must come back because we appreciate and value ''THE GOOD CUSTOMERS"' while staring only at us with a face full of disgust and attitude