Be careful about cancelling. If you put a credit card down to hold the reservation, you must cancel your reservation before the cancellation deadline or you will be charged a fee. The cancellation deadlines vary according to which meal you booked. The restaurants requiring credit card guarantees are Cinderella's Royal Table and dinner shows (on dining plan, it's prepaid if you're not on dining plan), Akershus princess meals, California Grill, and the special show seating packages (Fantasmic Dining or Candlelight Processional - the Tusker House/Nemo one is new and I don't know if they require a CC guarantee on booking)