I called for a party of 6 for 8/1. Nothing available. Booked party of 6 for 7/31, so I know the CM was looking for the right thing. 9pm, 24-hour cancellation, dessert buffet still happens even if Wishes is cancelled, blah blah blah.
Think to myself: I wonder if I could get it for a party of 3, or even two parties of 3? (Thinking back to people not being able to get a table for 2 at a restaurant, but able to get a reservation for 3 or 4, I'm wondered if they actually had tables blocked out and the party size was the problem.)
So I call back within 5-10 minutes. CM sees I have a party of three, but I say I really need a party of 6, but please check for 3 on 8/1. She asks me what time. Uh oh. "It should only be for 9pm." She says it's from 5pm-9pm. I say, "It's the desert buffet for Wishes in Tomorrowland."
OK, she keys me in for a party of 6. It's available. I'm still dubious - I figure I'll wait to see if she gives me the right details... "9pm, 24-hour cancellation, dessert buffet still happens even if Wishes is cancelled, blah blah blah." Charges my credit card the right amount. Whew!
Crazy!
So I agree with the others, just call back and try again!