Kernrechtsfrage
Whether the appeal had to be entered into despite non-payment of the required advance on costs.
Extrahierter Entscheid
The appeal was not entered into because the appellant failed to pay the advance within the deadline set under threat of non-entry.
Extrahierte Begründung
After an unsuccessful, non-extendable grace period, non-payment triggered non-entry under Art. 62(3) BGG; the case was handled in simplified procedure under Art. 108(1)(a) and (2) BGG.