Question juridique clé
Whether the constitutional complaint could be entertained despite non-payment of the advance on costs within the extended deadline.
Solution extraite
No. Because the advance was neither paid nor timely proven, the court declined to enter into the complaint.
Motifs extraits
Under the warning given and Art. 62(3) BGG, failure to pay the required advance within the set grace period required non-entry under Art. 108(1)(a) BGG.