Samsung Galaxy S2 II 4 months old Boxed and Unlocked ?

Selling my Samsung Galaxy SII its boxed with ear phones, leather case and charger. Its running Android 4.0 Ice Cream Sandwich. Phone is only 4 months old and is in excellent condition. There is small chip on the left hand top corner of the phone buts its unnoticeable to the eye. i am looking 275 or would swap for a Iphone4. Do not offer me anything else to swap as the answer will be no. Please feel free to ask any real questions. This phone is strictly a cash only on collection or delivery sale will not post anywhere so scammers give yourself the day off. Please feel free to call between 9am and midnight or email, but please NO TEXT MESSAGES! Thanks