All right. You were banned due to your IP being identical to your brother's IP. The reasoning for his ban is in his appeal. Unfortunately for you, you will have to also wait until your brother's appeal is looked at by an Admin.
Only the person appealing and a member of Staff can respond in a specific ban appeal thread. Unfortunately, you will just have to wait until your brother's appeal is concluded.
have you also been logging in on the same computer at the same time with accounts belonging to others like your brother has?
Closing the appeal due to inactivity. If you want to continue with your appeal, please answer Tim's question above.