Trouble receiving OTP emails from Microsoft Partner Center

Hello!

When clicking the Verify Email button in the location below, the primary contact email is not receiving the OTP verification email. I'm on my 6th Partner Center support ticket attempting to determine out why I am not receiving these emails.

Partner center support is quick to help me verify the account manually, but I would really like to see the automated system working as intended to help future partners avoid running into this same issue.

Could someone help me track down the email address these messages are coming from?

Thanks!
-jon

For reference, the first few tickets I opened under the following workspace/topic, but the assigned engineers say "you picked the wrong topic try again." 

Workspace: Account Settings
Topic: Account verification > E-mail ownership

I ask what set of options I should pick to get my ticket routed to the right team, but I haven't located someone that can answer that question either. I've started choosing a random workspace and topic in the hopes that I get lucky. I don't think this strategy is going to work very well, but the partner center support team haven't suggested a better approach and I'm out of ideas. Maybe if I open enough tickets, someone on the partner center support team will notice and help me out.