Struggling to get a warranty claim payment.

During December I made a warranty claim with dotsure for my car. The timing chain and venos gears faulty, submitted the diagnostic report, quotation inclusive of the faults and what needs to be done, full service record. Now I'm being told that I should send a detailed failure report (stating cause of failure) and images of the failed parts. of which I should take the car to the dealership to be stripped so that they can be able to take the pictures so now I have to cover the costs of stripping of the car of which am not sure if when taking them back they will still be in the same condition. Also if you say it's a wear and tear, how does a person break and tear a timing chain or make venos gears faulty of the car that you even supposed to be driving? It doesn't make make sense. And everything that I'm being told it's not even on the policy schedule nor was explained to me upon taking the warranty cover. I just feel like I'm being taken from pillar to post with regards to my claim. Now I have to stress about the car and struggle with getting my claim of which it's unfair.