Questione giuridica chiave
Whether the appeal had to be declared inadmissible because the advance on costs was not paid within the set time limit.
Decisione estratta
Yes. Since the advance was not paid in time, the appeal was inadmissible.
Motivazione estratta
The appellant did not furnish the required advance of costs within the non-extendable deadline; under Art. 62(3) LTF this leads to non-entry.