Rude manager, with a bad attitude

went to pick n pay new redruth, there was a long line as usual. When it was my turn to pay at the one of the two cashiers, the cashier told me she is still helping someone else. I asked the floor supervisor why cant she open more tills or get more people to help... She snapped at me rudely and said she is packing bags.... No she is not, she is always laughing and playing with the rest of the staff. I already complained at head office twice about the bad service and her lack of willingness to help. After her reply i said to her no she is just a lazy person, and dont want to help, then she said who do i think i am and she dont need this, and stormed away. As a manager or floor supervisor you need someone who can communicate with customers as this is a service you provide, and why is there never enough staff to help? You trying to save money? New redruth pick n pay is the worst pick n pay, you need a new hands on manager that does more than just her hair in the mornings and waiting for her pay check