Pick'n pay Daveyton mall has very bad customer service

I went to pick'pay at Daveyton mall today to buy some staff and ask everything was well until i reached till point . I asked the cashier if she had R100 she said she did not have it so i asked her if she had 50rand and she said she has it ok fine she rung the staff that i had then i asked her if she rung a plastic bag she gave me such an attitude so bad that tue even decided to void my sale and i had to just stand there like a stupid person until one of her Collegues told me to go and pay somewhere else