blackberry bold 9900 in black swap for a iphone 4 or 4s *

im based in mansfield and i wanna swap my blackberry bold 9900 for a iphone 4 or 4s my blackberry in perfect condition and on o2. comes with charger and a red silicone case and a wallet case. the touch screen is all working perfectly. 07715409759 ring or text this number for more details