Key legal question
Whether the appeal should be admitted despite non-payment of the required advance on costs.
Extracted holding
The appeal cannot be entertained because the appellant failed to pay the advance on costs even within the extended deadline.
Extracted reasoning
Under Art. 62(3) BGG, failure to pay the ordered advance cost by the set deadline allows non-entry; the case was handled in simplified proceedings under Art. 108(1)(a) and (2) BGG.