Love your name Joanne! In addition to offering special discounts to the general public, Disney often randomly sends out offers, either by email or mail, to guests. Noone quite knows how they get "selected", but if you do, and in your cousin's case, I suggest booking quickly after receiving the offer, as they're often so good they sell out quickly. In the many years since I've been going to Walt Disney World, I've only received one such offer, though know of many others who have received them. Be sure your info, such as email address, is kept up to date on the Disney website. And while waiting for a personalized special deal, check back
here regularly to see the latest Disney special offers.
Wishing you much pixie dust, Joanne, that you receive a special offer code!