We've never had an ADR or PS (years ago) cancelled, but the thought has crossed my mind recently. There's been several posts of people arriving at a restaurant only to have their ADR cancelled by WDW. In many cases, they were told "Sorry, but there's nothing we can do."

Naturally, they don't make mistakes, so it had to be the guest.

I'm afraid to call to change anything, due to those posts. This time, I think we're staying with what we originally booked no matter what. I'm even afraid to cancel an ADR. What if they cancel the wrong one? Others have reported it happening to them.

My DH & I are both laidback & wouldn't argue over an ADR, but I would be very disappointed if we ended up with no ADR & had to look elsewhere for a place to eat.