Question juridique clé
Whether the appeal was admissible despite non-payment of the required advance on court costs
Solution extraite
The appeal was inadmissible because the appellant failed to pay the advance of costs even after a granted extension with warning of inadmissibility.
Motifs extraits
Under Art. 62 paras. 1 and 3 LTF, the party seising the Federal Supreme Court must advance likely costs; failure to pay within the additional deadline after a first non-payment leads to inadmissibility. The appeal was therefore manifestly inadmissible under Art. 108 para. 1 let. a LTF.