Kernrechtsfrage
Whether the appeal could be entered into despite non-payment of the court advance within the extended deadline.
Extrahierter Entscheid
No entry was possible because the appellant neither paid the advance in cash nor proved timely debit of a payment order within the non-extendable deadline.
Extrahierte Begründung
After a warning under Art. 62(3) BGG, the appellant failed to satisfy the required advance-payment formalities; under Art. 108(1)(a) BGG the appeal had to be left unconsidered.