Question juridique clé
Whether the cantonal social insurance court had jurisdiction over the denial-of-debt action.
Solution extraite
The court hearing the matter was not competent; the case had to be sent to the competent court.
Motifs extraits
The payment agreement was a private-law novation that replaced the original premium claims with a new overall debt. The dispute therefore no longer concerned the original insurance-law claim, so the social insurance court lacked jurisdiction.