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What is a Device Account Number and how is it different from my Card Account Number?

When you add your card to Fitbit Pay, a Device Account Number is created in place of your card number. This number is used when you make a payment with Fitbit Pay (or a refund of that payment) so that your card number isn't shared with the merchant and won’t appear on the receipt. Each time you add a card to Fitbit Pay, a new Device Account Number is created. 

If you are using Fitbit Pay to obtain a refund, you may have to enter your card PIN at the contactless terminal.

More about FitBit Pay