Don't know where to ask this, firefox account deleted?

Why can't I log into my old firefox account from 2013? My account was considered a "Theme Artist" and I only ever uploaded one theme. But it says the email doesn't exist when I try to recover the password through the email. Yes it is 100% the correct email, I've only EVER had two emails, I'm certain it was this one and I even have old emails from mozilla themselves talking about my account. As you can see in the screenshot though it says it's from "nobody@mozilla", but it definitely wasn't a phishing email so a lot internally has probably changed within mozilla since 2015. But, how do I talk to an actual developer to recover my account as obviously you guys wouldn't be able to help with this. I know it was a long time ago and a lot has probably changed internally with mozilla but I would like access to my account back. Oh, and yes my artwork Theme is still uploaded to the addons website: https://addons.mozilla.org/en-US/firefox/user/7768082/ Hope someone can help.