I used
https://www.mycarcheck.com/ Cost me a tenner but you get full hpi, VIN number verification, mileage checks etc etc- well worth it for peace of mind!
The seller gave me a receipt and when i typed in the VIN number it came up as being different to the one they had on file- but this was because i misread one of the digits.
Remember that they never use O or I, they use 1 and 0 (zero) instead so make sure you haven't put an 'I' instead of a 'one' or an 'O' instead of a 'zero'
Also make sure you dont put 'S' instead of 5 or vice versa (as i did!)
Hope that helps bud
