What specifically do you need help with? There are different contacts for different "needs" (transportation, lodging, dining, etc.).
In general, here are some that might help (check the FAQs thread in this forum for additional info, including w/c &
ECV rentals):
General contact for WDW dining:
Brenda.Bennett@disney.com
MK dining: 407-824-5967 or email
wdwmkspecialdiets@email.disney.com
EPCOT dining: 407-560-6395 or email
wdwecspecialdiets@email.disney.com
DHS dining: 407-560-3551 or email
wdwstspecialdiets@email.disney.com
DAK dining: 407-938-3288 or email
wdwakspecialdiets@email.disney.com
Transportation from airport: You can use Disney's Magical Express--they merely ask that you please give advance notice of your need when booking, so that they can accomidate you. To reserve an accessible shuttle from Mears, call 407-423-5566. Or you can rent an accessible van from a local vendor.
Lodging: At the time you make your reservation, let them know if you will need a handicapped accessible room (and if so, which type--roll in shower, or just grab bars). If you are going through a TA, they can make sure the appropriate arrangements are made. Or, you can contact special reservations directly at: 407-939-7807 and press "1".
Hope this helps.