Questione giuridica chiave
Whether the appeal had to be entered into despite non-payment of the required advance within the extended deadline.
Decisione estratta
The appeal was not entered into because the appellant did not pay the advance even after the additional deadline expired.
Motivazione estratta
Under Art. 62(3) BGG, and in simplified procedure under Art. 108(1)(a) and (2) BGG, failure to pay the advance justified a non-entry decision.