SATCO Biggen,
Sadly, I suspect that management are, to some extent, correct.
Insurance companies exist to screw individuals and companies to the wall, and whilst they are quite happy to take premiums with no claims, they will increase premiums at the drop of a hat if they think a claim might be around the corner.
I suspect that however unfair it may seem, your employers probably have a point, and being utterly ruthless with them in negotiating is the only way around it.
All the best.
