How do I find out how much it will cost to use the AC? I've just recently received one from II, there aren't many resorts in FL I can use it, only Orlando and another resort close to home. I went onto Exchange, using the AC to find out availability but was afraid to click the continue button in case I was committed to something. Does the cost depend on the resort you choose and do you have a chance to go back if you don't want a particular one?