Try using the Disney app to locate an ADR that fits your party - it will prompt you to cancel your previous reservation, if applicable. I have also had luck calling Disney Dining reservations directly and they were able to change the party number with ease
I would search and if the correct number reservation is available, it will prompt you to drop the other. Otherwise, call. I've achieved quite a bit over the phone.
What's the secret to getting a rep from Disney Dining to add another person to your reservation? I have an ADR for Crystal Palace on 8/8 at 8:05am. I made to reservation for 8 instead of 9. I called yesterday to see if I can add another person to my reservation and they told me they could not. I mean is it really that much difference to add 1 more person?? I really want to keep this reservation but I need for a party of 9 instead of 8....any suggestions would be greatly appreciated. I am continuing to search daily for another 8:00 am reservation for 9 but getting nervous....
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