Question about Apple iPhone 8

Have a look at your order. There you will find the delivery date (if known) for your order. the information directly in the shop only applies to new orders.

For sure Apple changed the delivery date and postponed it... or they delivered less than ordered... then you have to wait for the next delivery. Easy as that.

This means that the quantity for the sales launch is probably sold out and everyone who orders now must expect an unknown delivery date.