Questione giuridica chiave
Whether the appeal was admissible despite non-payment of the ordered advance of costs.
Decisione estratta
The appeal is inadmissible because the appellant failed to pay the advance of costs within the extended deadline.
Motivazione estratta
Under Art. 62(3) LTF, failure to pay the advance of costs after warning leads to inadmissibility; simplified procedure under Art. 108(1)(a) and (2) LTF applies.