Questione giuridica chiave
Whether the office could worsen its draft pension assessment without violating good faith or the ban on reformatio in pejus.
Decisione estratta
A pre-decision notice under Art. 57a LAI is not a promise or incorrect assurance, so no protected reliance prevented the office from changing its draft decision to the claimant's detriment.
Motivazione estratta
The notice is meant to allow the insured to be heard and to point out errors before the formal decision; it does not create irreversible legal positions.