When you make your ADR to CRT, they will charge your credit card the full amount. The price will include tax and tip too.
I just ordered the slipper dessert for our upcoming trip. It cost $12.50 and you pay for that at your meal. You need to call the cake hotline at 407-827-2253 to order the slipper. You should do this no less than 48 hours before your trip or no more than 2 weeks out. I ordered ours at the 2 week mark.
I copied from
www.allearsnet.com what you receive with your package price for dinner. When you arrive at Cinderella Castle for your reservation,
a photographer will be on hand to take pictures of your group in the lobby,
before you are seated in the dining room.
A package with four 4x6 prints and one 6x8 print of your photo,
as well as one 6x8 print of Cinderella Castle,
in a Cinderella photo holder (valued at $29.95 plus tax)
will be delivered to you during your meal,
which will be from a fixed-price, set menu.
(One photo package per party of 1-4;
two photo packages for parties of 5-8, etc.)
I hope this info helps. Have a great trip.