You've become a user on the site and have searched for a listing or model that you're interested in. Now that you've found a listing that you love, you can contact the lister. When you first contact a lister, you'll be asked a series of questions to ensure you're a good match for the lister. This information will be saved to your profile and you won't be asked again when your perform additional inquiries.
Once your message has been sent, the lister will receive a notification that you have made contact and you should receive a response shortly. All of your messages will be visible in your inbox in your user dashboard.