Question juridique clé
Whether the appeal had to be declared inadmissible because the appellant failed to pay the required advance on costs within the additional time limit.
Solution extraite
Yes. The appeal was inadmissible because the advance on costs was not paid within the extended deadline.
Motifs extraits
After an express warning, the appellant still did not pay the advance on costs by the final deadline; under Art. 62 para. 3 LTF the appeal therefore had to be rejected in simplified procedure under Art. 108 para. 1 let. a LTF.