Ok, for this particular Pin Code you can book up to three rooms. You can book one for yourself and two more rooms for friends. They DO NOT have to live in your household nor do they have to be staying the exact same dates or even in the same hotel as you are. Do not say that the other people live at your house, it's not needed plus if you put them in your "household" they will not get special offers in the future or future mail at their real address. If you're using DME the tags would be sent to you as well. It is much easier to just do it correctly to begin with and everyone loves honesty. If someone tells you differently when you call ask them to check their policies again.