To dispute a charge on your billing statement, please send us complete information describing the disputed charge. Please include the merchant’s name, the date of the charge, the month the charge was billed, the amount of the charge, and the reason for the dispute. If the item was returned, please tell us how, when, and where it was returned. When we receive this information, American Express Customer Service will open an inquiry for you and contact the merchant on your behalf. Write to Customer Service at:
Amex Bank of Canada
Attention: Customer Service
P.O. Box 3204, Station F
To learn more about how to dispute a charge, please visit our online reference centre.