Hiya Angie!
Welcome to planDisney! I'm so sorry to hear that there is a family emergency and that plans have to change. Family is the priority, and Walt Disney World Resort is waiting here for when they are ready one day to visit.
Since you are arriving tomorrow your options are limited and most likely you will not be able to make any
modifications online at this point. According to the
Terms and Conditions for packages in 2024, changes to reservations including changing party size could result in a change fee. You will have to call and speak with a
Cast Member at Disney Resort Hotel Reservations. There may be a chance to avoid fees if you move your reservation to a future date. It's not guaranteed but I would ask about what options are available and they can look at your specific reservation and assist you. (I don't have that power as I am a guest like you!) I have found them to be very helpful but don't delay!
I don't know if you booked any
Enchanting Extras that required pre-payment but I would also have the Cast Member take a peek at how to remove that child from those reservations. Dining reservations can be
modified or canceled up to two hours before the reservation time and can be done online or via the
My Disney Experience Mobile App. Some reservations such as for Cinderella's Royal Table do not allow for modifications once the reservation is confirmed so speak to the Cast Member as well about this if you booked it. Look at your entire trip and make sure you modify any plans where they were booked so that you don't have any surprise charges.
I wish your whole Party pixie dust and luck!
Happy Planning!
-Nimmy