Board Thread:Game Discussions/@comment-18637768-20140710024318/@comment-7211845-20140714184657

I'm not really a big fan of buying and trading. GREE may have banned the account because it had a history. As B Legit stated, the account was hacked before trading. Unfortunately, many users do this and trade off their accounts to other users and get away with it. In my opinion, if it goes against the rules than it is Gree's right to ban the account.

I haven't heard of "unbanning". I presume that it is not probable. You would probably have to beg them. But as mentioned, legally they don't have to.