This is more about evidence. We didn't have the evidence we needed before, so my case was decided this way because we couldn't provide it. We've finally found it. Can I include it in the case ?
Of course. When you're adding new evidence that supports your case, a reviewer will look at all the evidence and determine whether it changes the decision.
May I ask a follow-up question about relevant evidence? Is it possible for me to submit a supplemental claim as well?
In this case, for fiduciary claims, is not available the supplemental claim option.