Markk - the SEAT guy didn't provide a report with paint thickness readings so can't provide any numbers. But remember, my brother bought the car new from a SEAT main dealer therefore the warranty applies to the car as delivered. There's no visual evidence of any post-factory paintwork and the second assessor confirmed (from visual inspection only) that it was original paint.
We appreciate that SEAT need to perform checks and ensure that warranty requirements are met but so far their approach to this has been far from professional and appears to suggest that there's a policy to avoid accepting a claim even when all the evidence suggests it's valid. SEAT have stated that they would NOT accept any assessment from an INDEPENDENT vehicle assessor which suggests that they want to control and distort things to suit themselves.