Questione giuridica chiave
Whether the public-law appeal was admissible despite non-payment of the ordered advance on costs.
Decisione estratta
The appeal was declared inadmissible because the appellant did not pay the requested advance within the extended deadline and did not prove the debit order to the court.
Motivazione estratta
After an initial and a supplementary presidential order, the advance of costs remained unpaid. Under the Federal Supreme Court Act, failure to pay the advance within the set period leads to inadmissibility.