Interested in Corporate MasterCard®* for your organization? Please visit your nearest BMO Bank of Montreal Branch.  To locate a Branch please use our Branch Locator. To enquire about programs over $5 million, please e-mail askbmoepurchasing@bmo.com. PLEASE NOTE: The public Internet is not a secure platform. You should never include personal information, such as credit card numbers in e-mail messages. Questions about your existing Corporate MasterCard account? Please call or write to us any time MasterCard Customer Service:    Phone: 1-800-263-2263  (Canada & U.S.)   416-283-2263 (outside Canada & U.S. call collect) Fax: 416-232-8306 or 514-877-8859 (TTY) TeleTypewriter for the deaf or hard of hearing: 1-866-859-2089     Lost or stolen cards:   Phone: 1-800-361-3361 (Canada & U.S.A.) 416-232-8020 (outside Canada/U.S.A. call collect) Send payments to: P.O. Box/CP 6044 Stn / Succursale Centre-Ville Montreal, PQ H3C 3X2 Send correspondence to: P.O. Box 300 Station M, 7th fl C Toronto, ON M5S 4X2 CP 11064 Succursale Centre-Ville Montreal, PQ, H3C 5A2

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