WeHelp is a PHP system developed to offer your clients a great user experience, Clients can search for FAQS that added by admin, if they don’t get any result they can submit new Tickets or Bug Reports and keep in touch with you or your Agents. Also, when the support is done and a ticket is closed and give it priority.

Demo
https://codecanyon.net/item/wehelp-ticket-support-system/22686943

Download
https://www.filecad.com/eaqs/WeHelp-v3.5---Ticket-Support-System.rar