With a lot of the posts pertaining to account terminations, I thought I'd compose this megathread, so if you're account has been terminated or, otherwise, shadowbanned, post it here.
What is the megathread for?
In case your account has been terminated or you've been shadowbanned. In the case of the latter, I'd usually suggest you initially go here but, if you've tried that and got no results, then post your circumstance here. It's simpler to compile things.
On updated note, this thread for sharing some update and possible solutions to one's conundrum
What is the Megathread NOT for?
If your account was terminated for community violations, then this megathread might not help your situation, so one may as well go to Tumblr Support and appeal or just make another account. . Here are the Community Guidelines for a reference. A lot of ya'll should prolly read the rules first.
ETA:
No, I don't work for Tumblr, WordPress, or Automattic but I will try my very best to help y'all out as I'm able to.
On another note, here's the contact info for Automattic (the owners of Tumblr and WordPress:
https://automattic.com/contact/
Tumblr Help Articles on tthis subject:
Tumblr Account Recovery
Can I Restore a Deleted Account?
The form to restore one's account
Relatedly, try browsing through r/TumblrAcctTerminated
Related to any of this, if your account was terminated or otherwise deleted recently, you and the Tumblr have about 30 days to restore the account, so I'd advise that you contact them before that time is up. Whether or not they'll do anything cannot be guaranteed.