Order placed - 2 hours later still no food and no-one to call

If I could give a zero rating I would. I ordered on the McDelivery app at 3:25. The order was placed and confirmation email received stating that delivery will take place at 4:10. By 4:30 I was trying to make contact with McDonald's to find out where my order was. There is no number under contact us, there is no chat bot as per their app and the customer care line does not work. It is now 5:21 (almost 2 hours later) and still no food. I am absolutely disgusted at the level of service and the fact that you cannot get hold of them. NEVER order from their app