WooConvo is the best and only WooCommerce plugin to connect your Customers after the order is placed. Messages and files can be exchanged between the Vendor and Customers against the Order. WooConvo is a fast and simple UI to show messages and files per Order. WooConvo is compatible with all WooCommerce theme.
Demo: https://najeebmedia.com/wordpress-plugin/wooconvo-woocommerce/