This is a mess and you should have just claimed for the write off from your own Comp (?) policy and done the arguments over liability at a later date. In fact I think you can still do that but it may involve instant withdrawal of any courtesy car.
I've got a £180,000 motor insurance policy to renew & zero time to help/advise, sorry.
I've got a £180,000 motor insurance policy to renew & zero time to help/advise, sorry.