also does shopify support cardlink https://cardlink.gr/en/ as a payment provider or viva wallet https://help.vivawallet.com/en/articles/4808161-integrating-viva-wallet-with-shopify?
Could you confirm for me what country your business is located in? I took from the link you shared for Cardlink, that you might be located in Greece. If that is the case, then yes Viva Wallet is a supported payment gateway but I did not see Cardlink. You can check our supported payment options on our payment gateway page here for more info: https://www.shopify.ca/payment-gateways/greece.