I did not use the same address as my disney club card on my reservations, yet we were able to use it for the discount when we checked-in. They also let my mother (who is part of my 'household' as I do live there about 4 months out of the year) use my card, even though she has a different last name than I do and I was not present when she checked-in. She is my immediate family however, so that may make a difference, but neither time did they check to see if the names or addresses matched.