Questão jurídica principal
Whether the appeal could be entered into after the appellants failed to pay the required advance on costs within the set deadline.
Decisão extraída
The court declined to enter into the appeal because the advance on costs was not paid even within the extended time limit.
Fundamentação extraída
Under Art. 62(3) BGG, failure to pay the ordered advance on costs after expiry of the deadline results in non-entry.