Thanks for signing up for Beta! It sounds like you may have already created an account as a part of The Referral Program. If you signed up for early access (go you!) then please try signing into the app for The Beta Program with that same email. If you're unsure of your password, tap "Forgot Password" from the login screen or by going here.
If you don't think you've signed up for any other program with Luminary, email us at firstname.lastname@example.org and we'll get you squared away!