TotalDesk v1.5.23 – Helpdesk, Knowledge Base & Ticket System 
TotalDesk is the only all in one helpdesk solution for WordPress. Including a ticket- & notification system, livechat, knowledge base, report and integration module it contains all support features, that you need. Get rid of single helpdesk plugins and get TotalDesk!.
Demo https://codecanyon.net/item/totaldesk/20502693
Downloadhttps://www.filecad.com/mv21/TotalDesk-v1.5.23---Helpdesk,-Knowledge-Base-&-Ticket-System.rar