contributor account suspension after a copyright claim

 my account has been suspended due to a third party copyright claim after years of a brilliant contribution with no issues and thousands of items in portfolio. A year or two ago I've accidentally uploaded a footage that I was working on (it simply had beed rendered to an upload folder and then was automatically uploaded). After a copyright owner claim, Adobe has suspended my account and stopped any communication. I cannot log in to my account for more than a month and of course I cannot delete the copyrighted file from there. Please kindly tell what can I do in this case.