Bad service

I purchased groceries to the value of R215.85 including a piece of homemade pie i asked Jennifer to warm it she then took the pie put it in the microwave and start to help other customers and totally forgot about the pie .after 5minutes i had to ask another cashier to take out the pie from the microwave .Jennifer did not even apologise for her action nor replacing it the supervisor came and took the pie and just put it in another container like that is the way they do business everyday (an i dont care attitude) .Clearly they dont know about good quality customer service. To me a customer is king .A happy customer means a healthy business