Question juridique clé
Whether the federal appeal could be entered into despite non-payment of the cost advance.
Solution extraite
No. Because the appellant failed to pay or duly prove timely payment of the cost advance within the non-extendable grace period, the appeal could not be examined.
Motifs extraits
After warning under Art. 62(3) BGG, the appellant neither paid the CHF 500 advance in cash nor provided the required debit confirmation for a payment order. Under Art. 62(3) and Art. 108(1)(a) BGG, non-entry followed.