Original Nokia Spare Parts

Hi there-

Does anyone know of a web site where I can buy the housing (all of it) for
the Nokia 6820- I have recently bought one second hand which is bumped and
scratched. Have gone through all the google & yahoo sites without success.

Or does anyone know of a company selling insurance returned phone parts
(like when you claim on the insurance when your phone doesnt work)

Thanks, Anyhelp please post here