It was restored and gave back to me in January 2019 before being automatically re-banned for Spam & Plagiarism in September 2019 , even though I haven't posted anything in-between.
I think you need to check the post/topic that caused you the ban and then to prove that you didn't create it.
If "You did not create that topic" is proven, the account will be unbanned exactly as happened to Billgator
[1].
Note that it needs to be carefully investigated so it may take several days to lift the ban.
As long as you have access to the account and you can prove your ownership, you should ask for the lifting of the ban and forget the rest of the story.
[1]
[Ban Appeal] bill gator