Kernrechtsfrage
Whether the cantonal court committed arbitrariness by refusing the witness hearing and by relying on the written assignment documents and the commercial register entry.
Extrahierter Entscheid
No. The court relied on written evidence and the register entry to conclude that the second assignment was invalid because the assignor lacked sole signatory power and no internal authorization or ratification was alleged or proven.
Extrahierte Begründung
The challenged assessment was not manifestly untenable. The court could infer from the documents that the assignment chain was not established, so further evidence was unnecessary.