Kernrechtsfrage
Whether the appeal could be entered into despite non-payment of the advance costs after the grace period.
Extrahierter Entscheid
No; the appeal could not be examined because the advance costs were neither paid nor properly proven within the deadline.
Extrahierte Begründung
Under the warning given, failure to pay the advance costs or submit proof of timely payment required non-entry pursuant to Art. 62(3) BGG in the summary procedure of Art. 108(1)(a) BGG.