[HELP!] Real mileage check

I bought an F-Type P300 in Belgium with only 2.000 Km.
Unfortunatly to boy from the car wash had an accident delivering the car to me.
Now the insurance find outt the car had another accdent in Belgium at 1000 Km and claims that I have increased the kilometres to collect the insurance compensation!!!
Is there any way to verify in all ECUs that they have not been tampered with and that the mileage is real?
Also, do you know which ECUs record mileage?

I’d contact a Jaguar dealer. Some car makers do store this information and pull the data records during the 1st service to make sure the engine hasn’t been abused.

You would probably end up having to go to a dealer anyway to download the information (if the F-type ECU stores it.)