Questão jurídica principal
Whether the appeal could proceed despite non-payment of the required advance costs within the extended deadline.
Decisão extraída
No. Because the appellant did not pay the advance costs even during the grace period, the court had to decline to enter into the appeal.
Fundamentação extraída
Under Art. 62(3) BGG, failure to pay the requested advance costs within the prescribed time permits non-entry; the court applied the simplified procedure under Art. 108(1)(a) BGG.