Credit cards

Report a stolen or missing credit card.


Lost your card? Spotted something suspicious? Act now. The sooner you report it, the sooner we can protect your account.

If your Conexus credit card or debit card is lost, stolen, or you notice suspicious activity, report it immediately. We’ll help you take the right steps to protect your account and prevent unauthorized use 

Conexus Mastercard®

  • Within Canada and U.S.: 1-855-341-4643
  • International: 1-6647-252-9564 (collect)
  • Use CardWise: Report lost or stolen or temporarily turn your card off
  • Use MyCard Info (for Business Cards): Report lost or stolen


Debit Mastercard®


Lock’N’Block keeps your money safe.

Our Lock’N’Block feature allows you to lock your debit Mastercard® to ‘block’ unauthorized or unwanted use through your mobile app or online banking. To use: 

  1. Log in to your Conexus online or mobile banking.
  2. Select My Conexus, then select Manage Cards.
  3. Select Lock’N’Block® to temporarily lock your card. All new transactions will be declined, except previously scheduled recurring payments. 
  4. Once you’ve located your card, simply unlock it from the same screen.



Reporting lost or stolen through CardWise: 

  1. Log in to CardWise at cardwiseonline.ca or via the CardWise mobile app. 
  2. Navigate to the Manage Card section. 
  3. Select Report Lost/Stolen. 
  4. Follow the on-screen steps to flag your card and request a replacement.

Note: if you turn off a card, all transactions will be denied, except for any previously scheduled recurring payments/transactions. 

Have more questions?

Explore answers to common questions and find resources for managing your card, fees and security.

Additional support

® Mastercard and the circles design are registered trademarks of Mastercard International Incorporated. The Collabria Mastercard is issued by Collabria Financial Services Inc. pursuant to a license from Mastercard International Incorporated.