New phone - failed to transfer Okta verify accounts

I am sorry. In this case since this is a Developer Free org, support will not be able to assist you to reclaim access to this account, unfortunately. As doing so would be a security liability. So your only option would be to create a new org. Currently we have no easy way to remove your existing email from our system to allow for creation of a new org with the same email, so you would need to use a different corporate email when signing up for your new org.