Here’s how to reach us.
When you have questions we’re here to help. Have your American Express Merchant number ready so we can get right to your query. And please be prepared to answer a few security questions for us. The security of your business and Cardmember transactions and protection of your information is very important to us and we need to make sure we are speaking to an authorized person for the Merchant Account number provided.
1-800-268-9877 (Monday – Friday, 8am to 8pm EST)
Card Authorizations and Fraud:
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)
Add new locations:
Please contact Customer Service to add a new location at 1-800-268-9877 (Monday – Friday, 8am to 8pm EST)
Travellers Cheque Authorizations:
Attn: Global Merchant Services Canada
101 McNabb St.
Markham ON L3R 4H8