This is a powerful PHP script that allows users to create tickets and receive support from your employees. It comes with a built-in knowledge base, so you can create detailed articles for additional support.
Create and limit your staff to certain categories of tickets, receive notifications about newly created tickets and much more. It also has an additional built-in payment system that allows you to create Premium plans for users who buy support. Works on MYSQL and PHP with CodeIgniter 3.1.9, which makes it a very reliable solution.