Waited 2 hours for food - BAD SERVICE!!!

Today I decided to try ordering a meal from McDonald's via their online portal and I have never been so disappointed in customer service than what I experienced this evening. I placed the order at 16h57 01/03/2018. On their system it allows you to track your order or atleast that is what they say. The estimated time given as to when my order will delivered was between 01/03/2018 17:50 - 01/03/2018 18:05. At around 17h40 I noticed that on the online tracking, the order status still showed "order received". I then proceed to contact McDonald's delivery who advised me that the store's (Brackenfell) manager will call me back. A guy by the name of Tauri called me back and I queried my order with him and I also informed him that I need to leave my home at 18h30 as I need to be at work at 19h00. I had a hungry family as I obviously didn't make food as we decided to buy take-aways & informed him of the inconvenience this has caused. I was informed by Tauri that my order has been received and that they only have one driver. They are waiting for him to get back to the branch and once back he will go deliver my order. At 18h30 I called the branch again and was advised that the driver had just left with my order and should arrive at my place within 10-15 minutes. At 19h05, my order was still not received and at this point I have already reached boiling point as I've been waiting 2 hours for my order, my family was hungry and I was late for work as I had to be at work at 19h00. I called the store again & spoke with Tauri, who assured me that the driver had left with my order and should be delivering it anytime soon. I explained to him how unacceptable this was and what an inconvenience it has been for me and my family. I then asked what discount can he/McDonald's give to me as this was really bad customer service. He advised that he was not in the position and then asked me what do I think the discount should be, I then told him I believe I shouldn't pay for the order as I've been waiting 2 hours for the delivery. He advised that he is not in the position to make that call, he then proceed to pass the call onto his manager, Samantha. I explained the whole situation again with her and she advised that I must pay for the order as it has already been loaded onto their system and left the store. She did however advise that she can give me any desert such as sundae's each for me and my family (5) on my next order. This was was really bad service and I do not think I will purchase from McDonald's anytime soon. This was totally unacceptable! My order also only got delivered at 19h15. No slip was brought with and I ordered 2 Happy meals with toys but this was not in the order that was delivered, instead 2 cheese burgers was the replacement. Again, unacceptable!!