Helping a friend => logged into another account => silenced for 250 hours for multi accounting and can't log into my account...
Osu Wiki wrote:
All purpose rules
Each player may only have one account at any point of time. If discovered to be in possession of more than 1 account, all other accounts except the first one registered will be deleted and further action may be taken. In addition, sharing account/login information with others is also forbidden.