American Express Merchant Website Support Center 


Quickly get the information you need to manage your Merchant Account, Payments, and Disputes with ease.

Get Help by Topic 


No need to wait on the phone to chat with support. Learn how to manage your Merchant Account on your own time.

Manage Disputes Online

All Support Center articles refer to the new Disputes experience. If you are seeing a different view of Disputes, please use this User Guide for support.

Contact Us

Live Chat


Click the 'Chat' button once you login to your merchant account to chat with a member of our service team.

Mon-Fri, 8:00am - 6:30pm ET

Email Us 


Send us email securely once you login regarding questions about the website or to request updates to your Merchant Account.

Call Us 



Our Merchant customer care representatives will assist you Mon-Fri, 8:00am to 8:00pm, ET.

Authorization Department – 1-800-528-2121 | Available 24/7