Kernrechtsfrage
Whether the appeal could be entered despite the unpaid advance costs.
Extrahierter Entscheid
No entry could be made because the required advance payment was not made within the non-extendable deadline and no timely proof of payment was provided.
Extrahierte Begründung
The court had warned of non-entry under Art. 62(3) BGG. The appellant neither paid in cash nor by valid transfer mechanism nor submitted the required debit confirmation within the deadline.