In order to change your nickname

  1. Go to "My personal data"
  2. Change your nickname in the "nickname" field

    Tip: you can check whether the chosen nickname is available by clicking on "Check availability". Depending on whether or not your nickname is available, the following messages will appear: "Nickname available" or "Nickname already assigned". In the latter case, you are invited to enter another nickname.

  3. Click on "Modify" at the bottom of the page

This change can only be made once every 90 days.