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Contact a Citi customer service representative by phone, mail or live chat and receive immediate support for your Citi account today.
- Activate a Card
Activate your Citi card online in a few simple steps. Just...
- Open an Account
Whether you need a checking account, a savings account, or...
- Contact Us
If you need to contact Citibank Online for any reason, you...
- Guided Investing
Citi Wealth Builder’s guided investing combines robo...
- Personal Loans
Whether you need a personal or business account, a credit...
- Self-Directed Investing
Citi Self Invest is a commission-free and self-directed...
- Citigold Private Client
Citigold Private Client Benefits. New to Relationship...
- Help & FAQs
If you need help with your Citibank online account, you can...
- Activate a Card
Get the most out of your next adventure with the Citi ® / AAdvantage ® Platinum Select ® World Elite Mastercard — a Citi AAdvantage ® miles credit card designed for the world's largest airline. Enjoy preferred boarding, American Airlines AAdvantage ® bonus miles and many more travel rewards.
Manage your American Airlines credit card account online, any time, using any device. Submit an application for a American Airlines credit card now.
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Simply join and register your Citi® / AAdvantage® card and shop at your favorite stores. It’s easy to get started: 1) Join SimplyMiles™ 2) Add your Citi® / AAdvantage® card; 3) Activate offers, shop and earn miles; The more you shop, the more you earn for flights, upgrades, vacations and more. Explore SimplyMiles and Register today
Sign on to your Citi account and enjoy a range of online banking services, such as credit cards, loans, bill payment, transfers, and more. You can also access exclusive rewards and benefits from Citi partners like Costco and American Airlines. Join Citi today and manage your money with ease.
Contact AAdvantage for help with award travel or your account.