
If the seller told you that the mileage reading was accurate and you find out it isn't, you can claim compensation for the difference between what you paid and the real value of the car. This also applies if the seller didn't check the mileage was correct but didn't tell you.
For example, if the seller told you the car had only done 56,000 miles when really it had done 156,000 miles, it would mean you paid too much for the car. link hii hapa.
http://www.wheelsng.com/2015/07/buyers-guide-how-to-know-a-cars-mileage-has-been-changed/