Question juridique clé
Whether the appeal could be entered into despite non-payment of the court cost advance.
Solution extraite
No. Because the appellant did not pay the cost advance within the extended deadline, the appeal could not be considered.
Motifs extraits
The advance payment order was properly served; a ten-day grace period under Art. 62(3) BGG was granted with a warning of non-entry; the advance remained unpaid, and no argument showed payment was impossible. Swiss and international law did not preclude requiring the advance in this case.