10. Can I book a double room with the Hotelcard? Jeannine Baumgartner Modified on: Wed, 13 Feb, 2019 at 2:05 PM Yes! You only need one Hotelcard per room (not per person!). No matter if it is a simple, double, or family room, every room on our portal is at your disposal with your Hotelcard! You want to go on amazing trips with your Hotelcard? Order right here!