Question juridique clé
Whether the appeal must be heard despite non-payment of the court cost advance.
Solution extraite
No. Because the appellant did not pay the advance even within the extended deadline, the Court did not enter into the appeal in summary procedure.
Motifs extraits
Under Art. 62 para. 1 and 3 BGG, the party must pay an advance for anticipated court costs; if the advance is not paid within the additional time limit, the Federal Supreme Court will not enter into the filing.