Kernrechtsfrage
Whether the federal complaint could be directed against the lower cantonal supervisory decisions
Extrahierter Entscheid
The complaint may only allege violations by the higher cantonal supervisory authority; direct challenges to the lower authority's decisions are inadmissible.
Extrahierte Begründung
Under Art. 19 SchKG, grievances must be addressed to the upper supervisory authority, so only the cantonal court decision could be attacked before the Federal Supreme Court.