As for the banned accounts they stay banned. You're responsible for your IP, if your "brother" was going to mine for you, it would have been a good idea to remind him of the rules, specially if he got in trouble for doing something similar on another server. When caught he told me he was new to the server and didn't know what macro was. And you say it wasn't you but your brother. Neither of those 3 are valid excuse.
If you want to continue players you can make a new account and start fresh.
