Looks like I was in Wave 6 as well (invited on April 12th). Any indication on how long it takes after the dealer submitted the order to get a production date and VIN?
I had a similar issue to this, and it took the regional sales person from Ford to get corporate to enable the build page for my pre-order reservation.
This took about a week to resolve.
The dealer can't submit a build without the build done from your pre-order account is my understanding.