iPhone 4S 32GB in White - looking to swap for Galaxy SIII (3) *

PLEASE NOTE I AM NOT LOOKING TO SELL MY PHONE. I AM LOOKING TO SWAP MY CURRENT IPHONE 4S 32GB WHITE FOR A GALAXY S3 ALSO IN WHITE. MY IPHONE IS IN EXCELLENT CONDITION AND SUPPLIED IN ORIGINAL BOX WITH ALL ACCESSORIES. I AM LOOKING TO SWAP FOR A SAMSUNG GALAXY S3 IN THE SAME CONDITION. ANY QUESTIONS PLEASE ASK.