Kernrechtsfrage
Whether the appeal had to be entered into despite non-payment of the required advance on costs.
Extrahierter Entscheid
No. Because the appellant failed to pay the advance even within the grace period, the court had to decline to consider the appeal.
Extrahierte Begründung
Under Art. 62(3) BGG, failure to pay the ordered advance after a warned grace period permits non-entry; the case was handled in simplified procedure under Art. 108(1)(a) and (2) BGG.