Kernrechtsfrage
Whether the appeal had to be declared inadmissible because the advance on costs was not paid within the additional deadline.
Extrahierter Entscheid
Yes. The failure to pay the required advance within the extended deadline required a finding of inadmissibility under the simplified procedure.
Extrahierte Begründung
The appellant did not pay the advance on costs by the non-extendable deadline set in the warning order; therefore the appeal was inadmissible under Art. 62(3) LTF and Art. 108(1)(a) and (2) LTF.