You can look at what badges you have, the badges you have discovered, and your progress for each badge on your Character Screen by pushing 'C'. You can also choose a badge to display as your title on your name plate, or choose 'No Title' and have the default title display. The default title consists of two parts. The first is your level status and the second is the kind of wizard you are based on your school.
Gameforge employees have their own badge: Gameforge Support. If someone claims they are a Gameforge employee but cannot show you this badge, report them immediately.