Kernrechtsfrage
Whether the cantonal court lawfully demanded a cost advance and issued a non-entry order when the advance was unpaid
Extrahierter Entscheid
The cost advance request was a valid procedural order; the court could require it and warn of non-entry if unpaid.
Extrahierte Begründung
Under Art. 69(1bis) IVG and § 195 VRG, IV disputes before the cantonal insurance court are subject to costs. The court's letter clearly constituted an authoritative order with an explicit warning of consequences.