If you have registered for or purchased a ticket to an event and need to get in touch with the event organizer, you can easily do so by replying to one of the event-related emails you have received.
This could be, for example:
Your invitation email
Your ticket email
Any other event-related email
Even though the sender appears as a noreply address, simply click Reply in the email. When you do, the recipient will automatically change to the event organizer's contact email address.
This allows you to get in touch with the organizer directly if you have any questions about the event, your registration, or your ticket.