Here's how you can update your profile :
Update Email ID: You can update your email ID on file by logging in to your American Express Online Account. Click on Edit Email in the Account Management section.
Update Address: For address change, please send a certified copy of any Officially Valid Document (OVD) to firstname.lastname@example.org from your registered email Id.
Examples of an OVD include: i) Valid Passport ii) Voter's ID Card iii) Driving License iv) Aadhaar (First 8 digits should be masked) v) Job Card issued by NREGA vi) Letter issued by the National Population Register with current address.
Your address will be updated if your OVD meets regulatory requirements. For more detail, please read our Frequently Asked Questions
Update Mobile Number: To update your mobile number, please call up Customer Care.