The most likely reason is that you signed up using a different email address than the one that received the "Welcome to Uncapped" email, or the one we have in our database. To resolve this, try logging out, clearing your cache, and signing up again using the correct email.
If the issue persists, please contact us at support+marcus @weareuncapped.com or via our chat. We'll assess the situation promptly and assist you in getting access to your portal.