Questione giuridica chiave
Whether the appeal had to be declared inadmissible because the court fee advance was not paid within the extended deadline.
Decisione estratta
Yes. The appellant failed to pay the required advance even after being granted an additional deadline, so the appeal was manifestly inadmissible.
Motivazione estratta
Under Art. 62(1) and (3) LTF, failure to pay the requested advance within the supplementary deadline leads to inadmissibility; the court therefore applied Art. 108(1)(a) LTF.