My boyfriend & I are going to Chicago for a weeked in Septembe. When I booked the room I did it through Expedia I notice they already charged my credit card. What would happen if we canceled now? Not that we are planning to. It just makes me nervous. I'm use to using your card to 'hold' your room, then on check in you give them your card again and they charge you when you check out. Anybody got any help for me. I've never used expedia before.