Kernrechtsfrage
Whether the appeal could proceed despite non-payment of the required court advance within the final deadline.
Extrahierter Entscheid
No; the appeal had to be rejected by non-entry because the advance was not paid and no proof of timely debit was produced.
Extrahierte Begründung
After notice under Art. 62(3) BGG and a non-extendable grace period, the appellant neither paid the advance in cash nor at a postal counter, nor submitted the required debit confirmation for a payment order.