I have recieved a PM saying that my account has been suspended. Why is this?

in game?
did you do anything bad during the past 2 weeks
someone might have told or something good question why are you banned anyway?

Because someone observed some stuff on Ch. 19 yesterday.

Someone, claiming to be your brother using your account, said some things and drew attention to himself.

I observed it first hand.

Sorry folks, made a mistake. It was someone claiming to be his *cousin*. I apologize for any misunderstanding.

Let's remember that account sitting is prohibited...

From the Trukz Terms of Service-
4. You agree not to create or access multiple accounts by the same player. Multiple accounts from the same computer network, even if managed by different individuals are not allowed to interact in the game either directly or via 3rd parties. Drivers on the same network are not allowed to work for the same company. Account sitting is not allowed in Trukz.

Again though, sorry for the mistake on which relative it was.