Folks that have been around awhile will recall the best practice is to write a letter to Amex corporate and complain about not having been targetted. Most folks get a dump of miles by way of apology (along w/ the explanation that marketing does these algorithm thingies and there's nothing that can be done to add you to the promo).
Reported # of points given range from 10k - 100k, I believe.
Folks have also reported some points for sending the complaint through the Amex email system when you're logged into your account, you won't get the reply by email but you'll probably get a letter in a couple of weeks... that process yields far fewer points (expect less than 10k).
Here's an old thread with much discussion on the subject
http://www.flyertalk.com/forum/showthread.php?t=346741
And the most recent contact info referenced therein:
Doria M. Camaraza
Senior Vice President
Card Operations
American Express Cards
777 American Expressway
Fort Lauderdale, FL 33337