Checkers mall of Africa bad service at pizza slices counter

I always go to checkers mall of Africa, the ladies who sell pizza slices have poor service. It's not the first time, I go there to buy pizza slices almost every second day, and I ask them to warm my slice, but they don't actually, they go around counters and leave the container there then after two minutes they go back to take it and close it up and they give you. Only after paying I realized that the pizza slice is as cold as if it was in the freezer. It took me less than 1 minute to pay by the way so there's no excuse there. Please speak to those ladies. To be specific I was at checkers today 18 June around 2:30pm, there was a short lady there, a bit thin. I will never ever go back to checkers to buy any cooked food. Never. Poor service.