This is the fee applicable by GKG (Gerichtskostengesetz / Court Costs Act) in Germany and totally fine.
You said you paid 4,600 to a lawyer for extrajudicial representation, but the German Court Costs Act (official abbreviation: GKG), you are referring now, determines the costs (fees and expenses) for certain judicial proceedings!
You paid 4,600 to a German lawyer?
You plan to file a court case against MegaDice in Germany?
LMAO!