Questão jurídica principal
Whether the complaint should be entered after the ordered cost advance was not paid within the grace period.
Decisão extraída
The complaint cannot be entered because the required advance on costs was not paid even within the extended deadline.
Fundamentação extraída
Under Art. 62(3) BGG, failure to pay the advance despite a reminder permits non-entry; the simplified procedure under Art. 108(1)(a) BGG applies.