12 Your obligations <ol> <li> <strong>12.1</strong> As User, you undertake to provide us true and complete information upon registration and when using the Premium Services. You undertake to inform us immediately of any changes to the data supplied and to confirm their validity upon request. </li> <li> <strong>12.2</strong> You undertake to abide by the provisions of these GTC, to observe the rules of the game and to obey our instructions and those of our employees as well as our vicarious agents and assistants. This includes the instructions of administrators and moderators (community managers, supporters) in the Game’s forums. </li> <li> <strong>12.3</strong> As User, you will refrain from any action that endangers or disrupts the operation and functionality of the Games and the successful collaboration with other users. In particular, you are prohibited from </li> <ul> <li> choosing a User Name that violates rights of third parties (in particular copyright, personal rights, trademark rights, company rights, etc.) or moral standards, e.g. is disrespectful towards religious orientation of third parties, is racist or discriminatory (we expressly distance ourselves from such behavior;) </li> <li> using an e-mail or internet address as a User Name. </li> <li>