Key legal question
Whether the appeal could be entered into despite non-payment of the required advance on costs after the grace period.
Extracted holding
No. Because the advance on costs was not paid within the extended deadline, the appeal had to be dismissed without entering into the merits under the simplified procedure.
Extracted reasoning
The appellant failed to pay the court advance even within the grace period. Under Art. 62 para. 3 BGG, this leads to non-entry; the matter could therefore be decided summarily under Art. 108 para. 1 lit. a and para. 2 BGG.