Questione giuridica chiave
Whether the appeal could be entered into despite non-payment of the court advance within the extended deadline.
Decisione estratta
No. Because the appellant neither paid the advance nor provided the required proof of timely payment, the Court had to refuse to enter into the appeal.
Motivazione estratta
After warning under Art. 62(3) BGG and expiry of the non-extendable grace period, non-compliance triggered non-entry under Art. 108(1)(a) BGG.