Key legal question
Whether the appeal is admissible despite non-payment of the ordered advance costs within the extended deadline.
Extracted holding
The appeal cannot be entered upon because the advance costs were not paid by the deadline granted under the warning order.
Extracted reasoning
Under Art. 62(3) BGG, failure to pay the requested advance costs within the set period permits non-entry. The simplified procedure under Art. 108(1)(a) and (2) BGG applies.