Key legal question
Whether the appeal had to be entered into despite non-payment of the court advance and failed service pickup.
Extracted holding
The appeal could not be considered because the advance was not paid within the extended time limit; the notice was deemed served after the unsuccessful delivery attempt.
Extracted reasoning
Under Art. 44(2) BGG, a notice requiring signature is deemed served no later than seven days after the first unsuccessful delivery attempt. As the advance was not paid within the additional deadline, Art. 62(3) BGG required non-entry in simplified procedure under Art. 108(1)(a) BGG.