Questione giuridica chiave
Whether the appeal had to be entered into despite non-payment of the required cost advance.
Decisione estratta
The appeal was not admitted because the cost advance was not paid within the extended deadline.
Motivazione estratta
Under Art. 62(3) BGG, failure to pay the advance within the set deadline justifies non-entry; the case was handled in the simplified procedure under Art. 108(1)(a) BGG.