Key legal question
Whether the appeal was admissible despite non-payment of the advance of costs within the time limit.
Extracted holding
The appeal was inadmissible because the appellant neither paid the advance of costs within the allotted deadlines nor filed a timely bank or postal debit attestation.
Extracted reasoning
After an initial and a non-extendable second deadline expired without payment, the conditions of Art. 48 para. 4 LTF were not met; therefore the appeal had to be declared inadmissible under Art. 62 para. 3 LTF.