I am just agreeing with the other posters - see if you can find what you are looking for in the disABILITIES FAQs thread. We have tried to gather as much factual information as possible from actual users.
If you want to contact Disney, there are some phone numbers and emails for diet questions in post #3 of the disABILITIES FAQs thread. There are also some contact numbers (not specifically for disability questions) in the links to the official WDW website in the top of post #3. You will also find a phone number for lodging information in post #7 of that thread.
If you have specific questions we can help you with, go ahead and ask.