Signing up for a Zoom session but never getting the Zoom info

I get an invitation to a Zoom meeting or webinar, sign up and am told I am registered. But the information on how to access the Zoom meeting never comes through. I say that I have not gotten the email, request that it be re-sent and never get it. It is not in my spam folder and Zoom is a protected entity in my email. It feels like Zoom is blocking my email, even though I have a Zoom account.