Key legal question
Whether the appeal was admissible despite non-payment of the ordered cost advance within the additional time limit.
Extracted holding
The appeal was not admitted because the required cost advance was not paid within the set grace period.
Extracted reasoning
Under Art. 62(3) BGG, failure to pay the cost advance within the additional deadline leads to non-entry; the court therefore did not examine the merits under Art. 108(1)(a) BGG.