Questão jurídica principal
Whether the late payment of the advance costs rendered the public-law appeal inadmissible.
Decisão extraída
The appeal remained admissible because the appellant should have been granted a grace period under Art. 62(3) BGG.
Fundamentação extraída
A one-day-late payment of the advance did not bar the appeal where the law required a subsequent deadline to be set after expiry of the initial period.