Kernrechtsfrage
Whether the appeal could be entered into despite non-payment of the required cost advance.
Extrahierter Entscheid
No. Because the advance was not paid within the non-extendable grace period, the court had to refuse to hear the appeal under Art. 108 BGG.
Extrahierte Begründung
The appellant was duly ordered to pay the advance, warned of non-entry, and did not establish inability to pay. The court’s follow-up letter maintained the requirement, and the deadline expired unpaid.