For this December I already have a confirmed reservation at the Boardwalk Inn under the 35% off Bounceback rate and already selected what colour MagicBands I want. Now I was wondering if I decide to change the dates if WDW releases a 35% off public discount or 35% off Annual Pass rates, will that effect the MagicBands? To be more specific if I arrive on an earlier date are they effected since it says how many days left I have to customize them prior to the date I'm scheduled to arrive. Since I'm from Canada I know they won't be mailed to where I live and they will be at the Boardwalk when I check-in. Anyway I know in the past when changing reservations the confirmation number never changes, however I never changed one after selecting the MagicBands.