Key legal question
Whether the constitutional complaint against the cantonal supervisory decision was admissible.
Extracted holding
The complaint was admissible insofar as it challenged the constitutionality of Art. 30 GebV SchKG under Art. 9 BV; the request to annul the office's fee assessment directly was inadmissible.
Extracted reasoning
A constitutional complaint is available for alleged violations of constitutional rights not otherwise reviewable under the debt-enforcement appeal route, and it may only be directed against the final cantonal decision.