Key legal question
Whether the complaint was admissible despite relying on unsubstantiated and new factual allegations about service of the payment order.
Extracted holding
The complaint could not be heard because the appellant failed to substantiate a legal error and impermissibly raised new facts in the federal proceedings.
Extracted reasoning
Findings on whether the service certificate was false were findings of fact and evidence assessment; such assessment cannot be reviewed under the debt enforcement complaint. New facts were inadmissible under Art. 79 OG, and the appellant did not show that he had been deprived of an opportunity to be heard in the cantonal proceedings.