Thought I had the reasons it was blocked quite clear but I guess we can go through them again.
1) Public File Uploader. This violates the File Hosting section of the terms of service. This is a permanent suspension.
2) Copyright Infringement. This violates the Copyright Infringement section of the terms of service. This is also a zero tolerance suspension.
3) Unsupported Language. As per the TOS your site is supposed to be in english, spanish, or french (or have an available translation), and one was not present. This is also ALSO a zero tolerance violation.
Any one of these alone would've been enough for the account to go away permanently, but it takes a special kind of site to hit 3 at once. Yours was that kind of site, so it's permanently suspended.
The domain/subdomain are locked in that they can't be used on another x10hosting account until this account is erased. If you choose to change webhosts, change the nameservers with your domain registrar.