Kernrechtsfrage
Whether the dispute over the transport surcharge falls under public law or private law for federal appeal purposes.
Extrahierter Entscheid
The surcharge is a private-law claim arising from the transport contract, so public-law appeal is unavailable.
Extrahierte Begründung
The court held that fare and surcharge disputes are pecuniary matters governed by private law; the surcharge compensates checking costs and is not punitive.