Questione giuridica chiave
Whether the appeal could be entered into despite non-payment of the required advance on court costs.
Decisione estratta
No. Because the advance on costs was not paid even after the statutory grace period, the appeal had to be dismissed without entering into the merits.
Motivazione estratta
The court had set a deadline and then a grace period under Art. 62 BGG, warning that failure to pay would result in non-entry. As the advance was still unpaid, non-entry followed under Art. 108 BGG.