From my understanding they're now being built with the sub. I can't find the post but the first half of 2023MY orders had the $250 credit and the second half builds are coming with.
Originally mine had the sub credit on my build from the dealer. My window sticker now shows the sub included...
Has the dealer sent you anything? If you can get an order# I'd contact Ford support. It was thru them that I was given my VIN, all they asked for was my order#.
Check this website to see if yours populated. You should see a series of random letters and numbers. Just have your VIN handy.
https://www.motorcraftservice.com/Home/SetCountry?returnUrl=%2FAsBuilt
It'll be hard to say for 2024 orders. I placed mine when the order banks opened this last go around on 3/27 and mine is scheduled for a build date of 7/26.
Hear back as in get a notification about your orde being placed? From my understanding is you or the dealee get a response usually within half an hour.