Kernrechtsfrage
Whether the appeal could be entered into despite non-payment of the cost advance within the extended deadline.
Extrahierter Entscheid
No. Because the advance was not paid even during the additional deadline, the court did not enter into the appeal.
Extrahierte Begründung
Under Art. 62(3) BGG and Art. 108(1)(a) BGG, failure to pay the required advance within the set time limit leads to non-entry.