Don't have access to the email I signed up with

My husband can’t log into his account since he doesn’t have access to the email he used when he signed up. So, he can’t reset his password and his phone number is not in the account. We have gone through the AI black hole and nothing. And it’s impossible to get anyone on the phone. This is the worst customer service and experience. 

And when I try to submit a ticket, it just sends me back to AI.