Elias here with Shopify Support. Thank you for this inquiry.
I can appreciate you for checking to see if it’s possible to integrate easypaydirect.com with Shopify. I’m afraid easypaydirect.com is not listed as one of our integrated payment gateways. That said, for new payment gateway integrations, the payment processor can reach out to Shopify if they’re interested in starting an integration. Nonetheless, we have a list of supported payment gateways to help you find a suitable payment gateway in your country. Did you get a chance to look at our available options?