Terrible service and meal from Simply Asia, Mall of Africa

I ordered a 2 meals via Mr. Delivery. I was prepared by Simply Asia, Mall of Africa. Unfortunately the 1 Meal (408 Chicken), was in edible. It had an overwhelming taste of LPG gas. I called in and spoke to a manager named Dumiso. After explaining the problem with the meal. He initially denied that there was actually a problem. His reason was that he had never received a complaint before. He insisted that there isn’t a problem as both my meals were prepared by the same chef. Will I actually call in if there wasn’t a problem!!! He was apprehensive to give me his name or replace my meal. I have kept the meal aside for now. Dumiso did not even care that this meal could potentially make some ill. It’s amazing that a prominent franchise has appointed a poorly trained “manager”. He obviously lacks the competence and customer service skills required. Is it necessary for their meals to jeopardise somebody’s health before they take a complaint seriously. It’s an unfortunate experience as this it the first sub par meal I purchased from Simply Asia. However the service received from their so-called manager was way worse than the food.