Key legal question
Whether the complaint could be entered into despite non-payment of the advance on costs within the non-extendable deadline.
Extracted holding
No entry could be made because the advance on costs was not paid and no proof of timely payment was submitted.
Extracted reasoning
After a warning under Art. 62(3) BGG, the appellant neither paid the advance in cash nor by postal handover and failed to provide the required debit confirmation; therefore non-entry followed under Art. 108(1)(a) BGG.