Once you are logged in, use the direct link and follow the instructions to delete your account.
URLS:
http://rsvp.com.au
http://www.rsvp.com.au/user/terminate!questions.action
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.