Firstly they don't tell you that if you underestimate your annual mileage, you have to buy more miles from them at an extortionate price, or you are not insured. Secondly, it took me two months to get proof of no claims discount from my old insurers and when I sent it in to Insure the Box, they will only apply the NCD from the date I sent it in. This company is a total con, aimed at vulnerable young people that believe they can make great savings if they get a black box fitted. In truth, you are far better off and it will cost you far less to pay a bit more and go with an insurancy company without a black box.