In case payment is made by invoice or otherwise as a subsequent payment The Company is entitled to charge penalty interest on arrears according to law.</p> <p> <strong>6 Responsibility of the Users</strong> <br> 6.1 Users are totally responsible for the use of the user account and for its safety. Users may not disclose their password to third parties. Users are exposed to risks if they let third parties use it inappropriately. </p> <p>6.2 Users are responsible for ensuring that blocked messages are examined.