I just released a new support plugin on Codecanyon. This WordPress plugin can be used for “regular” support, but it is also compatible with Envato marketplaces. Based on the Envato API, the plugin can verify a purchase license and inform you if the user did actually buy the item.http://codecanyon.net/item/wp-awesome-support-responsive-ticket-system/4619686
^ wow, dangit. I’ll delete my comment grunting silently.