Hi Andrew!
Welcome to the Disney Parks Moms Panel! Well, clearly, it is happy dance time with free tickets to the Walt Disney World Resort!
The answer may depend on the details of your reservation. You could try to
modify the reservation online to see if that is possible. The last time I changed my tickets, it affected the
vacation package that I had booked so I had to enlist the help of a Cast member to ensure that we kept the same resort hotel and room type. I suggest that you call to speak to a Cast member at 407-939-1936. Also note that, depending on the date that you modify and how you booked the reservation, there may be certain fees associated with the change to the reservation. Third party vendors, for example, may have additional fees.
The last few times I have called the Walt Disney World Resort, the wait time has been lengthy, so I used my speaker phone, placed the phone beside me and worked on something else while I was on hold. Hopefully, you will be able to speak with someone quickly!
Before you make any significant changes, be sure to check the details of those new tickets to make sure they do not have any special stipulations or blackout dates. I might also consider saving those new tickets for another trip in the near future. Two trips are better than one! Is it just me? Check the expiration dates on the tickets to be certain of the dates you can use them.
Andrew, we always celebrate free tickets! We will continue the celebration for you, happy dancing included!
Magic and memories,
Donyell