Questão jurídica principal
Whether the appeal was admissible despite non-payment of the required advance on costs within the set time limit.
Decisão extraída
The appeal was inadmissible because the required advance on costs was not paid within the prescribed deadlines.
Fundamentação extraída
After the initial deadline and an additional deadline granted under Art. 62(3) LTF, the advance still had not been paid; the appeal therefore had to be declared inadmissible under Art. 62(3) and Art. 108(1)(a) LTF.