Questione giuridica chiave
Whether the civil appeal is admissible despite non-payment of the ordered advance on costs.
Decisione estratta
The appeal is inadmissible because the appellant neither paid the advance nor produced proof of payment within the final non-extendable time limit.
Motivazione estratta
After a warning under Art. 62(3) LTF and expiry of the extended deadline, the court could not examine the merits; the matter was handled in simplified procedure under Art. 108(1)(a) LTF.