Key legal question
Whether the appeal could be entered into despite non-payment of the ordered advance on costs within the extended deadline.
Extracted holding
No. Because the advance was not paid even within the additional deadline, the appeal had to be left unconsidered.
Extracted reasoning
Under Art. 62(3) BGG, failure to pay the requested advance of costs after a final grace period permits non-entry; the court applied the simplified procedure under Art. 108(1)(a) BGG.