Kernrechtsfrage
Whether the appeal was admissible despite non-payment of the advance on costs within the supplementary deadline.
Extrahierter Entscheid
The appeal had to be declared inadmissible because the appellant did not pay the advance on costs within the additional time limit.
Extrahierte Begründung
Under the simplified procedure, non-payment of the advance on costs after warning leads to inadmissibility under Art. 62(3) LTF.