Key legal question
Whether the constitutional complaint could be heard despite non-payment of the court advance
Extracted holding
The court did not enter into the complaint because the appellant failed to pay the advance or prove timely payment within the non-extendable grace period.
Extracted reasoning
After a warning under Art. 62(3) BGG, the appellant neither paid the CHF 300 advance nor submitted the required debit confirmation; non-entry followed under Art. 117 BGG in conjunction with Art. 108(1)(a) BGG.