You shouldn't have a problem. When you get to the castle and check in, they will give you a receipt. I didn't have to give them my credit card again. You will enter and take your pic with Cinderella or whoever else is there. Once that is done they will escort you upstairs where you will be seated. After breakfast or dinner, they will give you your picture package and then you are free to leave. I too didn't know if i had to do anything, but i was told i was all set.