Question juridique clé
Whether the filing could be treated as an admissible civil-law appeal or only as a subsidiary constitutional complaint
Solution extraite
A civil-law appeal was unavailable because the minimum value in dispute was not reached; the filing had to be treated as a subsidiary constitutional complaint.
Motifs extraits
The amount in dispute was below CHF 30,000, so the ordinary appeal under Art. 72 ff. BGG was not open.