You can easily contact an event organizer by clicking on the link to the sign up you received.
In the top portion of the sign up, you will see the sign up creator's name next to an envelope icon. Click on this icon to open an email contact form.
Fill out the contact form to email your sign up creator directly.
Click the "Send Message" button. Can't find the link to the sign up? Locate the sign up you need with these tips.