Activate the many benefits included on your American Express Platinum card to unlock many travel perks, lifestyle benefits, and financial protections.

You won't be able to use the card or enjoy its benefits, and it could end up hurting your credit scores in the long run. Here's what to do instead. Many or all of the products on this page are from ...

To activate your card, enter the URL listed on the removal label on the front of the card. You will be directed to a secure Citibank web page (HTTPS), where you can ...