Key legal question
Whether K.________'s appeal had to be declared inadmissible for non-payment of the advance on costs.
Extracted holding
Yes. Because the required advance on costs was not paid even after extensions and an ultimate non-extendable deadline, the appeal was inadmissible.
Extracted reasoning
Under the CPC and cantonal fee rules, the appellant had to provide the advance on costs. After repeated extensions and a final warning pursuant to Art. 101(3) CPC, failure to pay justified a finding of inadmissibility.