You must put in a very substantial claim. Push the fact that the missing lambs are valuable financially and emotionally. having worked in the claims dept claiming against the MOD, railways, and utilities, you could come out of this several thousands of pounds better off.
Stress how much upset it has caused you, how your breeding program has been set back, your loss from fleece sales as they have now been contaminated etc.
Do not feel foolish, I got a five figure sum for a kid who's pony was cut and she couldn't go to a couple of show, the award was mainly for her upset.
A few years ago i would never have shared this advice but these days its every man for himself, these companies are paid for by us taxpayers so we might as well get something back.
Good luck.
