Rollerblade - a dead simple way for your clients to leave visual feedback on your WP site, creating information-rich tickets for you to track reports.
JS Support Ticket is Word Press most powerful, complete and easy to use help desk plugin.
WATS is a ticket system, used by helpdesk staff to deliver support. WATS stands for WordPress Advanced Ticket System.
WP Ticket is a very easy to use helpdesk and support ticket management system to receive, process, and respond to service requests.
This provides an easily managed queue of all customer enquiries, organizes them by status, owner, originator, provides a remarkable facility to search