@dbynum The signup page can be a little confusing – it offers both Trial and Integrator accounts. If you got a Trial account, it’s probably from accidentally picking the Trial option instead of the Integrator one.
If you go to Okta Developer, it’ll offer 3 options: auth0, free trial, and integrator free. You should be able to sign up for the Integrator Free Plan there. If it has an issue with your email, please try plus addressing (my.email+integrator@mydomain.tld
).