Follow the link supplied here, then click ‘Delete account’ in the bottom right corner. Follow the instructions and you’re set.
URLS:
http://www.ustream.com
http://www.ustream.tv/account/settings
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.