Question juridique clé
Whether the Federal Supreme Court could enter into the appeal despite non-payment of the ordered cost advance within the additional deadline.
Solution extraite
No. Because the appellant did not pay the cost advance within the extended deadline, the court had to refuse to enter into the appeal.
Motifs extraits
Under Art. 62(3) BGG, failure to pay the cost advance after an additional deadline leads to non-entry; the case was handled under Art. 108(1)(a) BGG.