Kernrechtsfrage
Whether the federal appeal is admissible despite non-payment of the court advance within the extended time limit.
Extrahierter Entscheid
The appeal is not admitted because the appellant failed to pay the advance on costs within the additional deadline.
Extrahierte Begründung
Under Art. 62(3) BGG and the simplified procedure of Art. 108(1)(a) and (2) BGG, non-payment of the required advance justifies non-entry.