When creating a user in upper case the auth0 user is created with a lowercase email. There have been many discussions on this topic by the looks of it but when going to raise a change password ticket with the uppercase email via the API a 404 is returned. If emails are going to be lowercased the experience should be consistent with the APIs
Thanks for providing this feedback! I will submit it to you product team directly as a feature enhancement.
We appreciate your feedback and thanks for being an Auth0 customer!