Kernrechtsfrage
Whether the appeal could be entered despite non-payment of the court advance within the deadline.
Extrahierter Entscheid
No. Because the advance was neither paid nor proven to have been timely paid, the Court would not enter into the appeal.
Extrahierte Begründung
The appellant failed to comply with the extended deadline and also failed to provide the required proof of timely payment; non-entry followed under the warning given.