Quote Originally Posted by RobinGBrown View Post
There's your ban.

You might get it sorted by getting customer services to unban them and put them all on one battle.net account, but right now what you've done is technically a bannable offense. No account sharing means no account sharing. You just shared accounts with your brother.
Yeah, this I'm sure is Item #1 on Blizzard-GM-Trainee's Checklist - check all accounts are in exact same name.

If Yes, go to Step #2.

If No, Ban 'em.

As others have pointed out the only legit account sharing is between a child and their legal guardian and as a multiboxer you WILL get reported and looked at every now and then.