I have forgotten my passport/user name. What can I do?
In the login section, in the bottom part of the right-hand box, you will find the questions: "Forgot your passport?/Forgot your user name?" Click the respective question and fill in the appropriate fields. Your password/user name will be sent to you automatically.
What should I consider when I am choosing a user name?
You can choose your user name freely, but you should be careful not to violate any other name or trade mark rights or any common moral standards and you should avoid any irritation (e. g. auction has ended, auction ends etc.).