Questão jurídica principal
Whether the appeal against the arbitral award is admissible despite non-payment of the court advance.
Decisão extraída
The appeal is inadmissible because the required advance on costs was not paid within the time limit set, including the extension granted under Art. 62(3) LTF.
Fundamentação extraída
The appellant failed to pay the requested advance by the final deadline; under Art. 62(3) LTF this leads to inadmissibility.