Kernrechtsfrage
Whether the appeal had to be declared inadmissible because the court costs advance was not paid within the set time limit.
Extrahierter Entscheid
Yes. Since the appellant did not pay the requested advance costs within the supplementary deadline, the appeal had to be declared inadmissible under the simplified procedure.
Extrahierte Begründung
After the court first set a supplementary deadline and then rejected the request for waiver, the appellant still failed to pay. Under Art. 108(1)(a) LTF in conjunction with Art. 62(3) LTF, non-payment leads to inadmissibility.