We made our reservations last December, made final payment in June and found out we could make our fastpass+ selections yesterday. I logged onto the "mydisneyexperience" website and clicked on the fastpass+ button (its been there for about 2 weeks but it never let me do anything) and then finally yesterday it popped up with the dates of my reservation and it let me make my selections. BTW it was the easiest thing to do and I even went in today and modified a couple choices and again it couldn't be any easier. After I made my fastpass+ selections I noticed that the "magicband" link was now saying "modify magicbands," so I clicked on it and sure enough I was able to customize all three magicbands and according to the website today, they were shipped and I should receive them in a few days.