Hi Dustie!
Thanks for your question. I'm a big fan of saving a buck whenever and wherever I can! :-)
One thing I strongly believe in is taking advantage of Disney's
Special Offers. In fact, it's probably been some years since I last took a Disney vacation that did not have some type of special offer, whether it be a free
Dining Plan, resort hotel discounts, or free Park Hopper option on park tickets.
To answer your question: Yes, if you find a discount after booking a reservation, you
can take advantage of the discount up till the point where you've paid off your package. Once you've paid off whatever was originally agreed upon, it is my understanding that you can't make any changes to the package deal, for instance, due to special offers.
I would encourage you to take a look at Disney's
Special Offers page, see if there's any package that gives you the best bang for your buck, and take advantage of it! :-) Now, if you've already made reservations and need to make changes later to take advantage of a special offer, you'll need to contact
Disney Guest Relations at (407) 939-1936.
Thanks, and have a Mickey Magical Day!
Terry