Key legal question
Whether the complaint could be entered into despite non-payment of the advance costs within the final deadline.
Extracted holding
No. Because the advance costs were not paid by the non-extendable deadline, the Federal Supreme Court had to decline to enter into the complaint.
Extracted reasoning
The appellant received the advance-cost order, requested a reduction too late, and still failed to pay within the subsequently set final deadline under Art. 108 BGG.