Dispute against Auto & General

I made a home contents claim for 2 TVs which both got damaged due to power surge and an assessor was sent to only assess 1 TV and the claim was rejected. I took both TVs to another assessor which confirmed that both TVs are damaged due to power surge which is covered under their policy. Seemingly now because the light comes on the damage is not caused by power surge but rather wear & tear. Damages caused by power surge doesn’t necessarily mean that there will be no power on the TV but it does affect other components on the TV which make it faulty and in this case it’s 2 TVs that go damaged on the same day at the same time.