Key legal question
Whether the Federal Supreme Court could enter into the complaint despite non-payment of the court advance within the non-extendable deadline.
Extracted holding
No. The complaint had to be left unconsidered because the advance payment was not made in time and the required proof of timely payment was not submitted.
Extracted reasoning
The appellant had been warned under Art. 62(3) BGG that failure to pay the advance within the final deadline would lead to non-entry. None of the permitted forms of timely payment or proof was met.