Brand new sealed and unopened Samsung Galaxy S3 (White) *

I have just received this phone on contract but would rather keep my old phone and have the money. I have not opened the package and the box is completely sealed. The phone is on TalkTalk so not sure if its locked to this network but ia Vodafone sim should also work with it. I prefer to have someone come to my door, I live in Dagenham, just outside Ilford. I travel frequently too East London and Hackney Wick so it could be possible to arrange a meeting somewhere in the area if I get enough notice. Thanks for looking!