Kernrechtsfrage
Whether the request to extend the non-extendable supplementary deadline for paying the advance costs should be granted.
Extrahierter Entscheid
The extension request could not be granted because it was filed on the last day of the supplementary deadline and did not invoke new reasons arising after the original deadline.
Extrahierte Begründung
The appellant had been expressly warned that the supplementary deadline was non-extendable; moreover, the request did not show new circumstances arising after expiry of the first deadline.