As you said, you were botting/macroing and as such, your ban will not be lifted until the ban period has ended.
When you are banned, your IP address is banned so any other accounts playing under the same IP address are banned as well.
That is just what happens when one person gets banned. We can't make exceptions for 'brothers' or real brothers unfortunately.
IP-address = Internet Protocol address. Every device connected to your home network has the same public IP. Hence why no one on your network will be able to play until the ban is lifted.
