You cannot delete your account, nor are the admins willing to do it manually for you.
For more info: http://ca.isohunt.com/forum/viewtopic.php?t=613837&view=next
URLS:
http://isohunt.com
Please note that AccountKiller.com is not associated with the business listed on this page. AccountKiller provides easy-to-understand instructions and guides on how to cancel charges and relationships from the list of businesses on our site, we have no affiliation with these businesses.