Question juridique clé
Whether the appeal had to be entered into despite non-payment of the court advance within the extended deadline.
Solution extraite
The court would not enter into the appeal because the advance payment was still unpaid after the grace period.
Motifs extraits
Under Art. 62(3) BGG, failure to pay the required advance allows non-entry; the case was decided in simplified procedure under Art. 108(1)(a) BGG.