You can use your new debit card with all Online Merchants that accept Mastercard. For these payments it is necessary to enter the 16-digit card number / PAN (front of the card), the 3-digit verification number (back of the card) and personal data on the payment page of the online retailer.
In order to check the card payment, the online retailer sends a request to the bank in the background. As part of this process, the customer is requested to approve the payment using biometrics (fingerprint / face ID) or ATC (authorization code) via the MobileBanking app.
After a successful verification, the bank confirms the payment and completes the purchase.