Interesting, didn't know that. But the E-mail addresses are different.
My previous account was initially shadowbanned without notice (all posts auto-filtered, and if I remember it correctly, it was a global shadowban on all subreddits) so I had stopping using that account. Weeks later I checked again and it became permanently banned explicitly. The system said,
> Your account has been permanently suspended for breaking the rules. This account has been permanently closed. To continue using Reddit, please log out and create a new account (the username [REDACTED] cannot be reused). This is an automated message; responses will not be received by Reddit admins.
My current account in question was temporarily shadowbanned. I was able to post in a subreddit without problems, and one day I was suddenly shadowbanned. But it was not a global one because I was able to post in another subreddit, so I suspect it was just an Auto-Moderation filter. After I sent a message to the mod of that subreddit (not Reddit admins) and stopped logging in via Tor, the account went back to normal again. But I never actually received a reply from the mod, I'm not sure how exactly I got unbanned - automatically due to a "good" IP, or manually by a mod.
(Reddit allows the creation of multiple usernames using the same email address,) were your two different accounts that were (1) permanently banned and (2) temporarily banned using the same email address?