The person I spoke with indicated that I would receive an email. I never did though. However, about a week or so after I made the reservation, I did receive a letter in the mail with my reservation information. I ended up receiving two letters since I had called back to correct my error on my departure date. At this point I can't recall if I had to link my reservation on my
MDE account or not. It may have taken a day or two to show up. But once it was there, when I called to update my departure date, the correct date was displayed almost immediately.