Thought I'd call customer service, and ask about it. They claim they can't do anything, and that the old user ID will remain locked "forever." A new card I can deal with, because I just hand the card when I use it. I hate having to change my user ID though, because it's so hard to remember all of them, and now I'm going to have to remember that it changed. Which sucks.
But, then, I bet there is no company in the world that provides the service I'd hope for. Does that mean I aim to high, or that the companies really suck?