Questione giuridica chiave
Whether the appeal should be entered into despite non-payment of the required cost advance.
Decisione estratta
The appeal could not be entered into because the appellant did not pay the cost advance within the additional deadline and did not prove timely payment by debit confirmation.
Motivazione estratta
Under Art. 62(3) BGG, failure to pay the advance within the non-extendable deadline leads, after warning, to non-entry under Art. 108(1)(a) BGG.