Key legal question
Whether the cantonal court rightly refused to hear the appeal for non-payment of the cost advance.
Extracted holding
The appellant should have understood, despite an incorrect salutation and missing payment slip, that the advance-payment order concerned him; no constitutional violation was shown.
Extracted reasoning
The order clearly referred to his own appeal and was issued shortly after the filing; minimal diligence and good faith required him to read procedural correspondence carefully and to seek clarification from the authority, not from a private adviser.