Note this little thing from Deb Will's FAQ:
"Guests at the Dolphin enjoy many of the same amenities as Disney operated resort guests. A stay at the Dolphin includes WDW transportation to all Disney attractions, length of stay passes, free parking, guaranteed park admission, package delivery to your hotel from the parks, same day dining reservations, preferred tee times, and access to guest services.
However, unlike other Disney resorts, charging privileges don't extend beyond the Swan and Dolphin. All purchases and dining expenses at both the Swan and the Dolphin, can be charged to your pre-arranged account."