Questione giuridica chiave
Whether the appeal could be entered into despite non-payment of the advance costs after the grace period.
Decisione estratta
No; the appeal could not be examined because the advance costs were neither paid nor properly proven within the deadline.
Motivazione estratta
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.