Questione giuridica chiave
Whether the complaint could be entertained despite non-payment of the cost advance within the extended deadline.
Decisione estratta
No; the complaint could not be entered because the ordered advance payment was not made in time.
Motivazione estratta
Under Art. 62(3) BGG and the summary procedure of Art. 108(1)(a) BGG, failure to pay the required advance within the set grace period leads to non-entry.