Questione giuridica chiave
Which cantonal social insurance court had territorial jurisdiction under Art. 58(1) LPGA/LATM?
Decisione estratta
Jurisdiction lay with the Valais social insurance court because the appellant was domiciled in Valais when the appeal was filed; the other address was only a secondary residence.
Motivazione estratta
Under Art. 58(1) LPGA, the competent court is that of the canton of domicile of the insured at the time the appeal is filed, regardless of the insurer's seat. The file showed Valais domicile on 14 September 2016.