Key legal question
Whether the appeal should be entered into despite non-payment of the advance of costs within the grace period.
Extracted holding
No. Because the advance was not paid within the extended, non-extendable deadline, the appeal was inadmissible.
Extracted reasoning
Under Art. 62(3) LTF, failure to pay the advance within the second deadline leads to inadmissibility. The request for installment payment was filed only after expiry of that deadline.