I was going to mention this too and no they don't always know. My first 2 cruises they knew. But my last cruise they had no record of me being a dVC member. I was traveling with my DD in a separate cabin and they knew she was. I knew right away when I did not get an invite to the members' meeting nor did I get magnets. I went to the DVC podium and told them that I didn't get anything and they checked their list and said my cabin didn't show I was a member. They said they would fix it, but they never did. I went back and they gave me the magnets and when they did a surprise give away one afternoon (they call your cabin and tell you to stop by and pick up your surprise) I would not have known about it had my DD not gotten the call. I still went to the meeting w/o the invite. It bugged me that even after telling them they missed me, they didn't fix it. We are doing another cruise in April so we'll see if they have me listed as a DVC member this time.