Question juridique clé
Whether the federal appeal was admissible despite non-payment of the advance costs within the deadline.
Solution extraite
The appeal could not be entered into because the required advance costs were not paid or duly evidenced within the non-extendable grace period.
Motifs extraits
After an order under Art. 62(3) BGG and a further warning, the appellant neither paid in cash nor via post office/bank transfer with proof of timely debit. Under Art. 108(1)(a) BGG, non-entry followed.