MasterCard Security

Lost or Stolen Card Emergency Help

You´re prepared to make the most of your trip – we´re prepared if you lose your card.

What To Do:
Call your issuing bank immediately. Your issuer may want to cancel your current card and issue you a new one. Be sure to verify that your mailing address has not been changed.

MasterCard Issuer Security Phone Numbers:
ATB Financial: 1-800-661-2266
BMO Bank of Montreal: 1-800-361-3361
Canadian Tire Bank: 1-800-459-6415
Capital One Canada: 1-800-481-3239
Citibank Canada: 1-800-305-7259
Credit Union Electronic Transaction Services: 1-800-567-8111
First Data Loan Company: 1-800-265-1228
GE Money Canada: 1-800-243-2222
HSBC Bank Canada: 1-866-406-4722
MBNA Canada: 1-800-379-2744
National Bank of Canada: 1-888-622-2783
President’s Choice Bank: 1-866-246-7262
Sears Canada: 1-800-288-9965
Wells Fargo Financial: 1-888-295-0050
Wells Fargo BusinessCreditSM: 1-888-215-9102


You must report your card lost or stolen as soon as you discover it. Most fraudulent purchases using stolen credit cards take place within the first few hours.

Feel Reassured: Learn About MasterCard’s Zero Liability.

Lost or Stolen Card Emergency Service
MasterCard® Global Service™ Telephone Number Directory

Emergency services in Canada
call 1–800–MC–ASSIST (1-800-62-27747)
TDD/TYY for the hearing impaired
call 1–636–722–3725

We’re ready to assist you 24 hours a day, 365 days a year, in your language.

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