Originally Posted by
best
Is one of them --generally, parhaps not for all--make any change in your profile for the specific account that you have not used for a while?
You've asked about this very subject on two occasions before, and have been told each time that you can't extend expiration dates simply by updating your profile.
http://www.flyertalk.com/forum/showthread.php?t=469202
http://www.flyertalk.com/forum/showthread.php?t=449043
Mike