Questão jurídica principal
Whether the appeal had to be entered into despite non-payment of the required advance on costs after an additional deadline.
Decisão extraída
No. Because the appellant neither paid the advance nor proved timely payment by debit confirmation, the appeal could not be heard.
Fundamentação extraída
After the non-extendable grace period under Art. 62(3) BGG expired without payment or proof of payment, non-entry was mandatory under Art. 108(1)(a) BGG.