Question juridique clé
Whether the appeal had to be entered into despite non-payment of the advance costs
Solution extraite
No. Because the appellant neither paid the advance costs within the extended deadline nor sought legal aid, the appeal could not be considered.
Motifs extraits
The advance costs were lawfully required under Art. 62 BGG; no special reasons justified waiving them. Under Art. 62(3) BGG, failure to pay led to non-entry under Art. 108(1)(a) BGG.