Iphone 5!!! 16gb O2, swap for S3 or Iphone 4s MINT -

Hello All I am selling my Iphone 5 16gb black on o2 because I need to raise some fund, I have had the phone since release date and got it from Lakeside o2. The phone is locked to o2 and I can show you all the receipts etc. I would consider swapping for a galaxy s3 or iphone 4s on o2 Give me a text or email!! Dan