****** WANTED - EITHER AN IPHONE 4S OR SAMSUNG GALAXY S3 - HAS TO BE WHITE & NEW ****** ?

HI I AM LOOKING FOR AN IPHONE 4S OR S3 FOR PERSONAL USE I WILL NEED A RECEIPT OF SOME KIND SO IT WILL NOT GET BLOCKED IT MUST BE NEW OR IN NEAR NEW CONDITION - IDEALLY UNLOCKED & IT MUST BE WHITE CASH READY I AM IN UXBRIDGE/SLOUGH AREA THANKS