It's not that there's no way (as it could be done through customization), but there just isn't a setting within the admin dashboard which allows you to add a different contact email address to the one associated with the listing author. Vantage is not encrypted, so you are free to make modifications to the default theme if you wish. AppThemes doesn't offer customization services, however we do have a
certified partners page where you can find developers for hire. Thanks.