I just looked at my email confirmation and this is what it says..
Advance Payment
Because this reservation requires an advance payment, a credit card guarantee allows you to hold the reservation and pay upon arrival using your Dining Plan. Your credit card will only be charged the cancellation fee if your party does not arrive for the reservation.
My cc was not charged, but I have the dining plan so it's assuming I'm using two credits for it. Which I'm not, I'll be paying oop when we get there.