1) The maximum number of AAdvantage® miles you can earn per calendar year (purchases recorded on your Jan.-Dec. billing statements) is 60,000 miles with the Citi® Gold / AAdvantage® World MasterCard®, the Citi® / AAdvantage® MasterCard®,
Citi® Gold / AAdvantage® Visa® Signature card, 100,000 AAdvantage® miles with the Citi® Platinum Select® / AAdvantage® World MasterCard®, Citi® Gold / AAdvantage® MasterCard®, Citi® Platinum Select® / AAdvantage® Visa Signature card and 150,000 miles with the CitiBusiness® / AAdvantage® card. AAdvantage Executive Platinum®, AAdvantage Platinum® and AAdvantage Gold® members are excluded from these limits. AAdvantage® miles are earned on all purchases except returned goods and services, cash advances, convenience checks, transferred balances, credits, fees and finance charges. Citi® Bronze® / AAdvantage® cardmembers are not eligible for this promotion.

2) First 25,000 primary cardmembers to register will be eligible to earn 0.25 AAdvantage® bonus miles per $1 spent on purchases. Bonus miles will be based on purchases posted on their May, June, and July 2006 Citi® / AAdvantage® billing statements. Qualifying purchases do not include balance transfers, cash advances, fees or related finance charges. Registered cardmembers must be the primary Citi® / AAdvantage® cardmember or CitiBusiness® / AAdvantage® cardmember to be eligible. A total of up to 2,500 bonus miles will post to your AAdvantage summary statement 6-8 weeks after the July 31, 2006 end date of the 25% more AAdvantage® miles promotion. AAdvantage® member may register only one time. Citi® Bronze® / AAdvantage® cardmembers are not eligible for this promotion.

3) A total of up to 2,500 bonus miles will post to your AAdvantage summary statement 6-8 weeks after the July 31, 2006 end date of the 25% more AAdvantage® miles promotion. AAdvantage® member may register only one time. Citi® Bronze® / AAdvantage® cardmembers are not eligible for this promotion.

Citibank and Citi with Arc Design are registered service marks of Citigroup, Inc. Citibank is not responsible for products or services offered by other companies.

Open to the first qualified 25,000 people who register at www.aadvantage25.com, who are U.S. based AAdvantage cardmembers as of April 30, 2006. Void where prohibited. Accrued miles will be awarded to primary cardmember on the account. Sponsor decisions are final and binding. Sponsors: American Airlines, 4333 Amon Carter Blvd., Fort Worth, Texas 76155 and Citibank (South Dakota), N.A., Citibank Customer Service, P.O. Box 6500, Sioux Falls, SD 57117.