j-t-p.......I am not a lawyer but I did have to deal with claims (for and against) the Company for which I worked. My experience was that one often had to challenge the views if Insurers.
Consequently, I think it might be worthwhile Sumie53 having a word with the Financial Services Ombudsman; which will cost nothing. :-
http://www.financial-...g.uk/about/index.html
I would be looking for at least a 50% settlement, if Insurers are adamant that there was negligence on the part of their Insured. Better still, I would be arguing for a 100% settlement on the basis that all reasonable steps had been taken to avoid the circumstances which, unfortunately, prevailed and could not have been prevented by her daughter, who was endeavouring to safeguard the vehicle.
Ron