I Phone 4 (black) bargain and unlocked !

My I Phone handset is 1 months old, recent upgrade and the handset was provided unlocked by phones 4 u. I have the receipt. The handset is immaculate and comes complete in original packaging. Please no offers and genuine buyer would need to collect from Kings Cross (home) or Acton (work) and pay cash. The handset is black. The handset is 16GB.