Secure Payment and ACH Processing for WooCommerce with Elavon Converge. Accept credit card payments with Elavon, the fourth largest merchant acquirer in North America. Elavon Converge for WooCommerce is a gateway plugin that allows you to take credit card and eCheck payments directly on your WooCommerce store. Customers never leave your site during the checkout process, which results in a seamless checkout process. Includes full support for WooCommerce Subscriptions and WooCommerce Pre-Orders!