Questão jurídica principal
Whether the appeal could be entered into despite non-payment of the court cost advance within the extended deadline.
Decisão extraída
No. Because the advance was not paid even within the non-extendable grace period, the appeal had to be declared inadmissible in simplified procedure.
Fundamentação extraída
The Federal Supreme Court had set an advance-payment deadline and then a non-extendable grace period under Art. 62(3) BGG. The corresponding order was deemed served when returned uncollected after the pickup period. As payment still did not occur, non-entry followed under Art. 108 BGG.