Worse service ever from pick n pay Azaleapark

I have never been treated like this by a cashier shouting that my card doesn't have money is declining while I was using my reward card and it was obvious that she doesn't know how to use it and the supervisor who was incharge was also clueless but the fact that they were screaming it showed professionalism I expect more from Pick n pay not this street behave Tshepiso Mapule and her supervisor needs serious training on customer service and pick n pay ethics.....