Question juridique clé
Whether the administrative appeal was admissible despite non-payment of the ordered advance of costs.
Solution extraite
The appeal was inadmissible because the requested advance of costs was not paid within the set time limit.
Motifs extraits
The court had warned the appellants that failure to provide the security would lead to inadmissibility; after they expressly refused to pay, the statutory consequence had to be applied under the OJ.