Nilo Velez

There are some cases where you don’t need all the billing fields of a digital product checkout. This plugin lets you remove some fields of the checkout page when all the products in the cart are downloadable or virtual.
Since version 1.2, the default behaviour is to remove billing fields only from free orders (those where the cart total is zero). You have the option to remove billing fields from all orders, but keep in mind that you will need those fields for invoicing if you are charging for the products.

WooCommerce Simple Checkout for Digital Goods

Removes billing address fields from the checkout page when you only have downloadable and virtual products in the cart.

Hem Thapa

This plugin allows WooCommerce store owners to process credit card payment via <a href="https://www.securepay.com.au/" rel="nofollow ugc">SecurePay (Australia)</a> payment gateway.
FraudGuard Setting and Pre Authorization Payments 
This plugin doesn’t support FraudGuard settings. If FraudGuard setting is enabled on your SecurePay account to minimize the fraudulent transactions or you need an option for Pre Authorization Payments, please <a href="https://hemthapa.com/product/woocommerce-securepay-payment-gateway-plugin/?ref=wp" rel="nofollow ugc">use this plugin</a> instead.
This plugin is tested up to WooCommerce Version 9.3.3

WooCom SecurePay Payment Gateway

Easily accept credit card payment from SecurePay Gateway (Australia Post) in your WooCommerce store

WooCommerce Simple Checkout for Digital Goods vs WooCom SecurePay Payment Gateway