Registration

You must use characters from three of the four following categories:
  • Upper case letters from A to Z
  • Lower case letters from a to z
  • digits of base 10 (0 to 9)
  • Special characters (e.g. !, $, #, %, -)
The following characters cannot be used:
  • @
  • .@ (dot in combination with @)
  • Umlauts (ä, ö, ü)