You can check your card details on the app or website :
To check your card details on the app
Go to Account & Card
Select the Card
Select Show the number
You may need to enter the code sent by SMS, or use fingerprint, to view your card details
To check your card details on the website
Go to your Bilderlings account
Select the Cards Show card details
You may need to enter the code sent by SMS to view your card details
Make sure to only ever save your card details with websites and apps you know and trust.
And don’t hesitate to report suspicious activity on your card.