Swap my iphone 4s for Blackberry 9900 !

Hi there, Id like to swap my Iphone 4s 16gb mint condition black for a blackberry 9900+£60 your blackberry must be in good condition and work on vodafone. my iphone is unlocked and in warranty until next may. Please no emails asking to swap for anything else, or asking me is the item for sale and asking to reply to dodgy email addresses.