I cannot claim with complete security, but if something was seized by customs, then there is something wrong with those goods. It is very likely Chinese copies that someone tried to smuggle into the EU, and such things are usually destroyed. Even if it were originals, would you buy a device that has no warranty?
Price for iphone 11 pro is from $999, and iPhone 11 Pro Max is $1099 - OP price is $1050
https://www.businessinsider.com/how-much-is-iphone-11-proI see you are smart! Who said that they were confiscated, and not obtained in any other way? The MARKET price is really like that, they are all sealed, I can activate and show that it is normal and the world guarantee from apple