I and some other posters have been told by CSRs that when you update your status on the web, this adds the new status to your reservation, but doesn't wipe out the old status. In other words, if you reserved as a base member, then updated to reflect your Silver status, you would have two lines in your record: Base member and Silver member. The UG software supposedly only looks at the first status line, not the last, so your old status is what will be used. The CSRs apparently have the ability to fully delete your old status and leave only your new status. It would certainly be easiest if you could simply do this yourself, but if you want to be assured of being eligible for the UGs, take a couple minutes to call in.