Key legal question
Whether the cantonal court arbitrarily found that the relevant advances were made to Y. SA and not personally to B.
Extracted holding
No arbitrariness was shown in the factual assessment; the challenge attacked contractual interpretation and was therefore not cognizable in this public-law appeal.
Extracted reasoning
The cantonal court directly interpreted the disputed contract under the principle of trust. The appellant's argument concerned federal contract law rather than constitutional arbitrariness, and the evidentiary assessment of witness C. remained sustainable.