Question juridique clé
Whether the civil appeal and constitutional complaint were admissible against the order for an advance of costs.
Solution extraite
The constitutional complaint was inadmissible; the civil appeal was admissible because the interlocutory order on an advance of costs could cause irreparable harm.
Motifs extraits
The order did not end the proceedings and thus fell under Art. 93 LTF. An advance-of-costs order threatening inadmissibility for non-payment may create irreparable prejudice.