Debonaires Greenstone Mall service dissatisfaction

I placed the order to be delivered at my son's school and left his name/grade on the delivery instructions so that the receptionist can contact him to collect. To my shock coming home from work, he did not receive his pizza which means he didn't have lunch. I immediately contacted Debonaires Greenstone Mall to understand what had transpired and spoke to a lady by the name of Lorraine whom I was later informed is the store manager. She didn't know to whom it was delivered to and suggested to provide me the driver's contact number of which I refused. This mendate solely lies with the store and she advised would call me back. After 30min had passed, I recalled the store only to find she has had left for the day without any updates to the query I raised. The lack of professionalism and inconsiderate has me appalled and disappointed but mostly angered that my son was the most affected which I need to stress more than anything else!