Kernrechtsfrage
Whether the complaint is admissible despite non-payment of the court cost advance within the fixed deadline.
Extrahierter Entscheid
The complaint is inadmissible because the appellants did not pay the required advance nor prove timely payment within the non-extendable deadline.
Extrahierte Begründung
After proper warning under Art. 62(3) BGG, failure to pay the advance or submit the required debit confirmation triggers non-entry under Art. 108(1)(a) BGG.