Bart,
Thanks for your question to planDisney!
When you
purchase theme park tickets at Walt Disney World you pick a starting date for those tickets. From the point of that first park day, you have a certain number of days in which to use your park tickets. It varies, based on the number of park days you purchased. The greater the number of days you purchased, the longer the time frame for use. As an example, with your 4-day park ticket you need to use them within 8 days of that first park day. If you purchase a 10-day ticket, the range of time expands out to about 2 weeks.
Unfortunately I would assume that you can no longer use those remaining park days that were on your
MagicBands, as I assume you are past that 7-8 window from your first park visit. But you know your schedule best and will know if there is still time to use those days before they expire.
While that may not be what you hoped to hear, I will say that I do like that they set up the tickets so that you can take a day off from the parks without losing an entry day into a park. When my family travels to Walt Disney World, we don't use all our theme park days consecutively. We love to have a day in the middle of our trip for no theme parks, opting instead to sleep in, to spend time by the pool, to visit
Disney Springs, or to enjoy a fun dinner at one of the resort hotels. Last time around my wife and my youngest daughter enjoyed a daughter-mother spa day at the
Mandara Spa at the
Walt Disney World Dolphin Hotel. Meanwhile my eldest daughter and I opted to do some resort hopping to enjoy all the different themes, and to enjoy a lunch at
Sanaa at
Disney's Animal Kingdom Lodge.
Have a Magical Vacation!Doug