You can use the direct link to delete your account. Follow the instructions to confirm.
However, if you've forgotten your password, it's very unlikely that you can have your account removed. Our users have reported that the admins aren't too willing to help you out. So be careful if you want to create an account here.
You can try to contact them using http://keyja.com/sendmail.php
If you signed up for Keyja.com using a third-party login such as Facebook or Twitter, you probably want to revoke all access from Keyja.com. Click the icon below to find out how.