Why isn't a reference appearing on my profile?
A reference is statement on your profile from friends, family members, and colleagues that helps guests become comfortable staying with you. References are different from reviews, which hosts and guests write after a completed trip, and referrals, which let you earn credit for inviting people to Airbnb.
After you receive a reference from another member of the Airbnb community, you'll need to approve it before it will appear on your profile. You'll receive an email and an alert on your dashboard when you receive a reference. You can also go directly to the reference:
References will only display on your profile if the author of the reference has a profile photo.