First, it must be made clear that CPU/Memory usage is different than bandwidth usage. Users become suspended when they start to use an excessive amount of a server's resources and it starts to affect other users, making everyones webpages load slowly. In a shared hosting environment this is unacceptable. Because of this, we take a pro-active approach to server abuse and suspend questionable users immediately.
For further information, please visit Resource Abuse Policy in following link