Key legal question
Whether the appeal had to be entered into despite late proven payment of the advance costs.
Extracted holding
No entry could be made because the appellant did not prove payment of the court advance within the non-extendable deadline.
Extracted reasoning
Under the BGG, the advance must be paid within the set period; if the deadline expires unused and the advance is still unpaid within the grace period, the Federal Supreme Court must not hear the filing. The burden of proving timely payment rests on the party. The amount was credited only on 1 March 2012, after expiry of the final deadline, and no timely bank/post confirmation was filed.