Thanks for posting this, it’s the last step I needed.You have to have a reservation.
You can book it online: https://disneyworld.disney.go.com/airport-transportation-reservation/
Or you can call DME directly: 866-599-0951
The online form does work just fine. I've used it for every single trip. I never callThat on-line form doesn’t actually work. Thanks for the DME number. I’ll give it a try.