Kernrechtsfrage
Whether the appeal had to be dismissed for non-payment of the court advance within the final deadline.
Extrahierter Entscheid
Yes. The appellant did not pay the remaining advance in full within the non-extendable grace period and did not prove timely debit in the event of a payment order.
Extrahierte Begründung
After warning under Art. 62(3) BGG, non-payment of the remaining CHF 1,800 within the deadline required non-entry under Art. 108(1)(a) BGG.