A structured note's term sheet contains the features that matter most: the underlying asset(s), the coupon, the 'barrier' or 'knock-in' level that determines your downside, the 'call' or 'autocall' level, the maturity date, and the issuer. Each of these can turn a 'safe-sounding' product into a high-risk one.
Pay particular attention to whether the note references the worst-of several assets, how far the barrier sits below today's price, and whether principal is protected only at maturity and only by an unsecured promise of the issuing bank.
If your advisor never walked you through these features — or described the note as something simpler and safer than the term sheet shows — that gap can be central to a claim.