@Jack Ducat As per case summary the issue is resolved.
Issue: Domain verification failed
Cause: Backend system verification failed
Solution: Product group validated the information provided and verified the domain. The issue with domain verification is now resolved.
Since the Microsoft Q&A community has a policy that the question author cannot accept their own answer. They can only accept answers by others, I' have summarized and posted the solution/answer to benefit the community users to find the answers quickly.
If the response helped, do "Accept Answer" and up-vote it