I am finally going to have to admit defeat on this one. NU left a message on my answerphone today to tell me that the third party's solicitors are intending to pursue me over this claim. NU said they have done all they can, and I am now on my own with regards to this one.
I contacted Albany, who phoned NU, and found them as completely unhelpful as they have been all along. I tried phoning NU myself, but got the usual experience of a call centre in India, where I was kept on hold for ages, and then put onto someone who could not answer a single question I put to her, and kept me waiting for ages while she went off to ask someone else. I then phoned Kwik-fit, who said that NU have the right to drop the claim if they don't think they will win, and it is down to me to defend it myself. Kwik-fit said they will not get involved. Because I am going against NU's decision, no legal cover or assistance will be provided. I then also found out, from Kwik-fit, that NU have actually admitted liability and already made a payment (probably for the car rather than the personal injury claim), so they have completely set me up.
It gets worse though. I then phoned a solicitor: a firm I have used twice before, although for something other than this. They put me onto their representative who deals with this kind of thing, and relayed the story. He listened, and then told me they would not be willing to take the case, and he doubted that any other solicitor would either.
Two reasons:
1) It will be argued that the third party was continuing around the roundabout, whereas we were leaving the roundabout. The fact that he was in the wrong lane is irrelevant, as our attempting to leave the roundabout was the manoeuvre which caused the accident. If we were leaving the roundabout, we should have ensured it was safe to do so, and if not we should have just continued around a second time.
2) The fact that NU have admitted liability will count heavily against me.
So I think I will have to admit defeat, and phone NU tomorrow to tell them I will not be defending this, and they can go ahead and do their worst. I have also written a letter of complaint to the chief executive of NU, but no reply yet.
I think the bottom line was that the third party's insurers, NIG, got solicitors involved straight away and did things properly, whereas NU just did not bother. Nothing to do other than forget about it: until I get my renewal quotes
Thanks to everyone for the advice and support you have given me.