Key legal question
Whether the Federal Supreme Court could enter into the complaint despite non-payment of the required advance costs within the final deadline.
Extracted holding
The complaint could not be heard because the advance costs were not paid or duly proven within the non-extendable deadline.
Extracted reasoning
After a warning under Art. 62(3) BGG, the appellant neither paid the CHF 500 advance costs in cash nor via the permitted postal/bank methods, and also failed to submit the required debit confirmation. Non-entry therefore followed under Art. 108(1)(a) BGG.