Kernrechtsfrage
Whether the Federal Supreme Court could enter into the complaint despite non-payment of the court cost advance.
Extrahierter Entscheid
No. Because the appellant did not pay the required advance or provide proof of timely payment within the non-extendable deadline, the complaint had to be dismissed without entry.
Extrahierte Begründung
After service of the final deadline under Art. 62(3) BGG, the appellant neither paid the advance in cash nor by postal/bank transfer and did not submit the required debit confirmation. Under Art. 108(1)(a) BGG, non-entry was mandatory.