Question juridique clé
Whether the federal appeal had to be entered into despite the appellant's failure to pay the court advance within the final deadline.
Solution extraite
No. Because the advance costs were neither paid in time nor properly evidenced, the appeal could not be entered into.
Motifs extraits
After the non-extendable grace period under Art. 62(3) BGG expired without payment or proof of timely debit, non-entry followed under Art. 108(1)(a) BGG.