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)
Please contact our Customer Service department 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
If you recently joined the American Express network and are having issues with your terminal, please contact your terminal supplier (the number provided on the terminals) or contact our 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
101 McNabb St.
Markham ON L3R 4H8