Poor assesment of insurance claim.

I called in and logged a claim under my building cover, I reported that my barrier wall was leaning badly towards my neighbor side and I was worried it might collapse on someone, my insurance said the assessor found nothing wrong but did notice I had trees growing close to my wall, so their the assumption is that the tree's roots are pushing over the wall, so I told the consultant that they are welcome come inspect the root, ill even to dig around the tree's to prove that its not the roots, but she insisted that the assessment was final. Then the consultant still has the audacity to say that the assessor said my wall was not built according to regulation, so I asked how must I know which wall and structure in my yard isn’t built according to regulation when you buy a house, the wall was built before I even moved in. I'm very frustrated and disappointed on how my claim was handled and would like to advise anyone looking for new insurance to stay away from Dialdirect cause it seems they have to much fine print. If all their service was as good as their cancellation department they would be great.