That’s often the case richard that manufacturer re-tweak the trim levels or do a re model like with VW golf 7 they made it the golf 7.5 before the 8 came out, they changed the bumpers and looks also.
The problem is they taking so long to deliver cars than before many are getting caught up with these often yearly refreshes and repricing of the models and the cars not what you ordered.
Letting you know 4 days before is a complete and utter shambles imo. Hopefully you get it for the ap you paid and a car trim level you happy with.
For me if it didn’t come with adapive cruise control it would be a huge issue, As i wouldn’t of ordered one without it.
Those are the things to check before you enter the pin or give the pin to the dealer to enter.