Bad Cashier Service

Mr Price Plaza Mthatha has the worst service when it comes to serving playing clients. There was never once was I served at one go in this shop. They always help first cash paying clients, seems like it's what they are targeted on. You que three times before you can be actually helped. I am typing this standing on a second que because when it was my turn to be served the cashier closed her till and told me to que on the other side, really?