OK. I know I want to do the Tuesday night Luau on our August trip which I will probably just book before we leave, but I see on the website that you can now also book online for character eats at the 3 hotels. Do they charge your credit card right away or is it just a hold like at Disney? Can I cancel with no penalty? Wonder if I'll be better off just waiting until we get there and see what we feel like doing (which DH would prefer to do)?