Question juridique clé
Whether the constitutional subsidiary appeal was admissible despite non-payment of the advance on costs.
Solution extraite
The appeal was inadmissible because the appellant neither paid the advance nor produced proof that the amount had been debited in favor of the Federal Tribunal within the time limit.
Motifs extraits
Under the Federal Tribunal Act, failure to comply with the ordered advance on costs after a final deadline leads to inadmissibility.