Pathetic Service

This order was accepted by the restaurant at 17:00 and the expected time of delivery was 17:40. At 17:51 I called Mr D enquiring about this delivery, and I was told it will be with me in 5 minutes. At 18:10 I called back and was told they are changing the driver. Firstly, if the driver was having issues, Why was I not called and had the problem explained to me before? I would have explained the issue to my HUNGRY family and we could have had a snack in the meantime. Secondly, If my order was ready at 17:25, which was the time the app said the food would be ready, would it not be cold if it was delivered an hour late? Am I expected to feed that to my HUNGRY family? The manor in which this was managed is extremely unpleasant and unprofessional. Because of this, Mr D will lose a customer, I know one customer will not make much of a difference, but I have no faith in using this service any further.