errrrm the only thing i could say is that if you tell them you dont use the car to commute to work and lower the yearly mileage. i know its not telling the truth but they cant voide it aslong as you dont say the accident happened on the way to work lol. and about the lies on the mileage they hardly ever check (i know that due too the amount of times my mate have crashed cars) and they all lie on insurence (garage etc)
Says who? Just cos you lie doesn't mean you won't get found out
God there are some stupid people out there. It's not that hard for them to check your mileage!