Claim rejected due to unauthorised repairs?

On the 5th of July a Taxi drove through my boundary wall. I logged a claim with King Price and the Taxi Owner made temporary repairs to the wall due to there being a hole in the boundary wall which is a big security risk for the tenants. Only the hole was repaired but a large part of the wall was damaged due to the impact. On the 8th of July after not hearing anything from King Price, I called to follow up on the claim, after which some progress was made. An assessment was done on the damage and today when I called to follow up I am told that the claim was denied due to unauthorised repairs that was made.... So... Does King Price really expect my tenants to stay in a property with heavy foot and vehicle traffic on the road next to it, with an open gap in the wall, for 11 days until they decide to approve or reject a claim? Really? I would love to let the person who decided to reject the claim stay at this specific property with absolutely ZERO restriction to unwanted access for 11 days... If this person is willing to do this, I will gladly continue my policy with King Price...