Key legal question
Whether the appeal had to be entered into despite non-payment of the requested advance costs within the grace period.
Extracted holding
The appeal was not admitted because the advance costs were not paid even within the extended deadline.
Extracted reasoning
Under Art. 62 para. 3 BGG, non-payment of the advance costs after a duly set grace period permits non-entry in simplified proceedings under Art. 108 para. 1 lit. a and para. 2 BGG.