Question juridique clé
Whether the complaint must be entered into despite non-payment of the court advance within the final deadline.
Solution extraite
The complaint cannot be entered into because the appellant did not pay the required advance nor prove timely debit/payment within the non-extendable deadline.
Motifs extraits
After valid warning under Art. 62(3) BGG, failure to comply with the advance-cost order leads to non-entry under Art. 108(1)(a) BGG.