Questão jurídica principal
Whether the respondent could be imputed a higher hypothetical income than CHF 4,000 per month.
Decisão extraída
No review was possible because the factual finding that the issue had not been contested below was binding and the complaint was insufficiently substantiated.
Fundamentação extraída
The appellant failed to exhaust the cantonal instance on the factual question of actual earning capacity; the challenge was also merely appellatory.