Is there a way to do this because I have rejected some record hints in error?
Welcome to the "Community.FamilySearch" Forum.
I am just another 'lowly' User/Patron ...
Just in passing ...
Short Answer: 'Yes'.
Go to, the "Person/Details" page/screen, of the individual/person concerned.
On the 'Right-Hand-Side' of the page/screen, under "Research Help", select "Show All".
You will then get https://www.familysearch.org/tree/person/research-help/[PID] ...
Then, select "Dismissed Helps" ...
You will then, get a "List" of ANY, particular "Dismissed Helps"; where, you can "Restore", them individually.
I hope, that this may help/assist, somewhat.
Brilliant, thank you!