Iphone 4s (O2 barred) spare or repair *

hi, i have i iphone 4s 16gb its been barred, bought last week and now its barred and cant get intouch the the guy i got it off,dont know what to do with it so i am selling it, if someone knows what to do to get it fix, they will get a good phone, its boxed and in very good condition i am open to offers SAMSUNG S3 IN WHITE COLOUR. ON T-MOBILE AND ORANGE NETWORK BOXED WITH CHARGER EARPHONES VERY GOOD CONDITION USED ONLY FEW MONTHS BARGAIN AT 335 FIRST TO SEE WILL BUY may swap for iphone 4s collection from west london and i will not post!!! cash on collection only ealing broadway, ealing commmon Here I have is my sony ericsson xperia in good working order can be seen working some scrachers on it from use on 3 net work got app markit on it and skype and facebook gmail did have the charger for it till my dog had it but eny other charger will fit it if its same as a blackberry charger swap for an other smart phone on 3 net work pick ups only as I dont drive txt me with your offers and swaps thanks for looking IPhone 4 8GB 6 Months Old so good conditon and good battery life Small Marks on Front (see picture) Please contact me if you want anymore information Collection only Thanks x 32GB IPHONE 4S NEW & UNUSED PHONE HAS RECEIPT AND COMES WITH BOX, UK CHARGER, HEADPHONES AND USB LEAD. PLEASE EMAIL ME IF INTERESTED OR IF ANY QUESTIONS YOU WOULD LIKE ME TO ANSWER. &