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What should I do if I see a transaction I don't recognize on my National Bank Mastercard statement?

First, consider the following points:

  • Did you lend your card to another person?
  • Could it be a transaction carried out on an earlier date, but charged later by the merchant? (e.g., taxi, parking, etc.)

If you still do not recognize the transaction, contact Mastercard Customer Service at 1-888-622-2783.

 

®Mastercard is a registered trademark, and the circles design is a trademark of Mastercard International Incorporated. Authorized user: National Bank.

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