Key legal question
Whether the public-law appeal had to be entered into despite non-payment of the advance on costs within the extended deadline.
Extracted holding
The appeal could not be entertained because the advance on costs was not paid within the supplementary time limit.
Extracted reasoning
Under Art. 62(3) LTF, failure to pay the required advance within the set deadline leads to inadmissibility; the appeal was therefore not examined on the merits.