DVC resorts don't usually accept faxes. You'll want to add "traveling with" to each reservation. The member you booked with can contact Member Services via email and have it noted on the reservation. Our friends were staying at OKW the same time we were. I had their reservation number and sent an email to MS asking if it might be possible if the two reservations might be in the same building. We were both in Bldg 35 (I hate that building, but it was convenient to be close).