Comment by ElProlactin

> And I (quite reasonably) replied on them rather than checking the original documents.

Putting aside the fact that any claims here are almost certainly time barred after 30 years, ostensibly, your attorney explained to you that because you had the grant in your possession, claiming that you reasonably relied on the company's statement about what the grant said would weigh heavily against any misrepresentation or fraud causes of action in a lawsuit.