Call us immediately at 1-800-361-0070
to secure your banking file.
Are you abroad?
You can call us at 514-844-8026.
We accept collect calls.
To alert us of a lost
Mastercard® credit card, you can also contact Mastercard
Global Service® at the local number of the country you’re visiting.
Your call will be redirected to National Bank.
Don’t
forget to immediately lock your debit
card or credit
card from your online bank or
the National
Bank app.
Legal disclaimers
®Mastercard and Mastercard Global Service, are registered trademarks of Mastercard International Incorporated. Authorized user: National Bank.
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