Question juridique clé
Whether the appeal could be admitted despite non-payment of the ordered advance costs within the extended deadline.
Solution extraite
The appeal could not be entered into because the advance costs were not paid in time.
Motifs extraits
Under Art. 62(3) BGG, failure to pay the required advance costs within the set grace period leads to non-entry in the simplified procedure under Art. 108(1)(a) BGG.