Email I got from Citi (after they transferred it to their Amex department)
Subject: Amex Small Business Saturday
Date: November 26, 2012 9:17 EST
Unfortunately, the terms and conditions of this offer stated that only eligible American Express cards qualified. Citi issued American Express cards were not part of this offer. If you have any questions, please contact American Express directly at 1-800-528-4800.
Please let us know if we can be of further assistance.