Sorry, but you're just plain stupid. You're not allowed to buy accounts. It is against the ToS. And I think selling is illegal. (Not sure, nor do I care)
For how much did you buy that account?
Edit: Of course we cannot unban you. Only GM's can, which are at the z8games website.
Edit2: Read below, I pasted it for you.
For more, read: https://www.z8games.com/termsandcondition.aspx[1.1.5] Buying / Selling of Z8Games property (includes items and accounts)
Z8Games does not allow the buying or selling of its property (as listed in this agreement). This includes but is not limited to accounts, items contained within accounts or any other virtual property created within its games. Accounts may be suspended or closed if investigated or caught participating in selling or the promotion of account selling or any other solicitation involving account or item buying/selling.