WHAT IN THE WORLD!!!?
I have been doing duolingo for about four years now. Not ever have I had this problem. Then I log in today to find that my account has been so called deleted. All my progress for all four of my languages has been deleted. I have to legit redo all of my trees. Very very upset. HOW IN THE WORLD! all my hard work. gone. Years wasted. Now I have no level at all. I'm more than furious! Things like these are why people don't trust websites.
Are you 100% sure that the only e-mail you used (you can verify that easily by your inbox TO address) is associated to "BigDawwg"?
I am very sorry, but I have to ask you that, even after 4 years.
Have you been using the web or the mobile?
I wish there would be an easy backup restore functionality (script / tool controlled) for accounts from 24-48h before by a 3rd party technical DuoLingo support to MANUALLY apply the restore for one or multiple selected courses :-(