Want to talk?
Here’s how to reach us.
If you’re ready to sign up as an American Express Merchant or have questions about how accepting American Express can benefit your business, we’re here to help you today.
Interested in Welcoming American Express:
Please contact our New Signings department to start accepting American Express Cards at
1-877-255-4334 (Monday – Friday, 8am to 8pm EST)
Add new locations:
Please contact Customer Service to add a new location at 1-800-268-9877 (Monday – Friday, 8am to 8pm EST)
Contact us with any inquiries you may have about American Express Card Acceptance
1-800-268-9877 (Monday – Friday, 8am to 8pm EST)
Card Authorizations and Fraud:
To learn more about Card Authorizations and tips/tools to mitigate fraud, please contact us at
Please contact your terminal supplier (the number provided on the terminals) or contact Merchant Services Technical Support Unit if you have an Amex Terminal at 1-877-834-7607 (24/7)
Travellers Cheque Authorizations:
You can also reach us by mail at the following address:
Amex Bank of Canada
Attn: Global Merchant Services Canada
PO Box 3204 STN F,
Toronto, ON M1W 3W7