Worst customer service

I went to buy my son school socks yesterday,after the cashier processed my transaction,she didn't give me my plastic bag,instead she left it where the costumer plastic bags are being kept and when l asked her,she said l should check there but her working space as she walked away without even looking at me with attitude,l was so shocked,l then to my plastic and left,never ever going to ackermans Greenstone,l will stick to balfour mall or other places.Cashier name was Thenjiwe