Help centre
I lost or had my cell phone stolen. What now?
Quickly contact your service provider to deactivate your cell phone.
We also advise that you quickly deactivate your Apple Pay® or Google Pay® features.
- To deactivate your debit card, call 1-888-835-6281
- To deactivate your credit card, call 1-888-622-2783
We recommend that you also change the password to your online bank and National Bank app as a preventative measure.
In the event of fraud in your online bank or National Bank app, you’ll be fully reimbursed if you’re not at fault and you’ve taken the necessary steps to protect your transactions. It's free, and it's our guarantee¹ to help give you peace of mind.
Want to know more about simple ways you can protect yourself? Check out our ABCs of security.
Legal disclaimers
®Apple Pay is a trademark of Apple Inc., registered in the U.S. and other countries. Apple Inc. is not a sponsor of or participant in National Bank Mobile Banking Solutions.
®Google Pay is a trademark of Google LLC. The use of this trademark is subject to Google Inc.’s authorization policy.
¹The Peace of Mind Guarantee for Digital Banking Solutions is applicable to customers who, after verification, prove to be victims of fraud and choose to cooperate in the investigation of this fraud. This warranty applies only to unauthorized transactions made on Mobile Banking Solutions and only covers amounts lost as a result of such transactions. The Peace of Mind Guarantee for National Bank's Internet Banking Solutions and Personal Banking Solutions is applicable to fraudulent customers who have adequately protected their access number, password, and equipment and who collaborate with others regarding any investigation relating to fraud. Clients must take the necessary measures to ensure their security when they carry out their transactions on the Internet and has the obligation to notify National Bank promptly if they believe to be victims of fraud.
Related questions
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I lost my cell phone. What now? Lost your cell phone? Follow these simple steps to secure your account and deactivate mobile payments. -
I’ve lost my debit card. What now? Was your debit card lost or stolen? Lock it online to avoid any fraudulent transactions and contact us to replace it. -
I’ve lost my ID. What now? Lost your ID? Quickly secure your banking file against identity theft by calling us at 1-800-361-0070. -
My National Bank Mastercard credit card is lost or has been stolen. What now? Has your credit card been lost or stolen? Quickly lock and replace it, here or abroad, from your online bank or the National Bank app. -
Where is the security code on my credit card? Find your 3-digit security code on the back of your credit card to confirm your online purchases.
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