Samsung galaxy s3 white 16gb £300 ?

For sale Samsung galaxy s3 16gb in white. Phones in good condition no marks on screen but a small mark on top left corner. Phone comes with box usb cable and plug also a 16gb memory card and a Samsung phone cover with flip front. The flip case is in used condition and I also have original ear phones but there used aswell. Wanting 300 or possible swap for I phone 4 on orange and cash depending on iPhone condition. Please feel free to text can send images if needed. Thanks