Late Delivery

I place food order last night for the store to deliver today at 11:30am because my lunch is at 12 but when I checked my order this morning it was canceled and I ordered again at 11am and my food came after lunch time at 12:30 the delivery time kept changing and when I asked the driver he said he had another delivery to do so why does uber estimate the time of delivery while knowing the driver might have other deliveries I ended up not having lunch today because of such nonsense I was ****ed for real I was hungry and had too much work to do but uber eats decided to make my day bad can they please fix their app or drivers .