Hiya Jo!
Thank you so much for stopping by! In a word,
maybe. In most cases,
yes, you should be able to apply the offer to an existing reservation as long as your vacation falls within the offer dates
and there is availability at your resort. Sometimes, in order to qualify for the offer, you
might need to change your resort hotel. These instances can be rare, but I thought I'd mention it--just in case you have your heart set on staying at a specific resort.
You can also make these changes to your reservations through
My Disney Experience, or by calling (407) 939-4357.
Have a magical vacation!
Amanda