Questione giuridica chiave
Whether the appeal against the fund's statements on default interest was admissible at this stage
Decisione estratta
The appeal was premature because the contested decisions merely informed the insured that default interest would later be claimed in a formal decision after payment of the contribution balance.
Motivazione estratta
The initial and opposition decisions concerned contribution fixing under Art. 25 RAVS. The interest statement was only informational; a separate formal decision on default interest with remedies would be issued later, after payment.