Did you buy that account?  It was registered in 2015, but I can only see posts from 2017 on--plus all the posts I can see are generic shitposts obviously written for a bounty or signature campaign.  I'm assuming you were banned for plagiarism?

If so, your chances are essentially zero for getting your account back.  Only members who are highly valued by the community ever get back their accounts if they've committed plagiarism, and that isn't the case with you.  Or did you get banned for something else?