Questione giuridica chiave
Whether the appeal could be admitted despite non-payment of the court advance.
Decisione estratta
No; because the advance was not paid even within the extended deadline, the appeal had to be left unconsidered under the warning given.
Motivazione estratta
The appellant's objection did not address the advance-cost order, and the advance remained unpaid after the legal grace period expired. Non-entry followed under Art. 108 BGG.