Posting this from a second account I have for testing.
I recently reset my primary (lifetime pass) account password, and for some reason my password manager decided not to save the updated password. Result - I can’t login!
So I tried requesting a password reset link, but getting nothing.
Emails from Plex are coming in on that email address (it’s an Office365 business domain), since I recently got the notification about accounts being possibly compromised (which is why I reset my password in the first place!), as well as other marketing/promotional emails.
Contact Plex Billing via the Billing Questions link at the bottom of the page and explain the situation. They should be able to clear things up for you.
I got a response within a couple of hours, and after going through some manual account authentication steps (confirming payment dates/amounts, etc - stuff they have on my account), they sent me a manual reset link. Of all the attempts I tried resetting the password myself, I only received a single email (8 hours later) and the token on that link had already expired.
Maybe I got lucky, but maybe it’s just a timing issue - not sure they have support staff working 24/7 in the billing department.