IPHONE 4, 16GB, BLACK, MINT CONDITION,ONLY USED FOR 4 WEEKS...on O2 .

Here i am selling my Black iPhone 4,16GB currently on O2 network....can be unlocked or maybe already is unlocked? The phone has been used for around 4 weeks & is in MINT CONDITION. It has no scratches or marks on the front or back & has had a protective case on it from day one! The iphone 4 comes with the original box,instructions/guides,earphones & charger....all are also in mint condition. You will not be disappointed. First to see will buy. One of the best prices on Gumtree for a virtually brand new hardly used iPhone! I will reset the iphone back to its factory settings before the sale. £310. No offers. Cash on collection only. No paypal, no cheques, no £50 notes & will NOT post Located in Enfield,EN1 (north London)