Kernrechtsfrage
Whether the constitutional subsidiary appeal was admissible despite lacking detailed constitutional grounds.
Extrahierter Entscheid
The appeal was inadmissible because it did not satisfy the strict duty to plead and substantiate constitutional violations.
Extrahierte Begründung
Only a constitutional subsidiary appeal was available due to the value in dispute. The appellant raised no specific constitutional complaint, in particular no arbitrariness argument against the Geneva fee rules, and merely alleged bad legal advice.