Great to hear and good on you for sticking with it.
I've now managed to find a specialist insurer with an agreed value but to anyone that doesn't this is worth noting.
My insurers have agreed an "agreed value" policy. In order to qualify I need to submit 6 current photos ( no problem) and a signed valuation from a garage .Tried my local Reno dealer - useless! Question is where to go to get this done - willing to pay for the service but based in Oxfordshire and not aware of a local RS specialist that I can ask. Any help appreciated. Thanks
Well done @sikora . It's always worth taking the fight back to them if you have the time and stomach for it. Most don't which is why insurance companies are used to easy wins.