From the payzy application, it is not possible to pay with a credit card from another bank. If the e-banking platform of the other bank allows you to enter the details of your payzy card to make the payment from there, then you can proceed with the transaction.
Alternatively, you can transfer the amount to your account held at the other bank and pay your credit card from there. For money transfers to another account within Greece or abroad (SEPA), you can choose "Transfer" from the "Wallet" section and follow these steps:
a. Fill in the relevant fields for the recipient (name, surname, IBAN number, and additionally the SWIFT/BIC code of the recipient's bank for international transfers).
b. Select the desired amount to transfer (provided there is a balance in your wallet).
c. Add a comment if desired.
d. Confirm your details and execute the transaction through Strong Customer Authentication (SCA).