Once logged in, you can go to your profile page (using the "Profile" link at the top-right corner) and click on the "Request account deletion" link.
If you cannot log in any more, please contact us at contact@imcdb.org with the e-mail address that you used for registration.
We'll try to process the request as soon as possible, usually within 24 to 48h. Pease check your spam/junk folder if you don't receive a response, especially if you use Gmail.