blackberry 9900 for sale or swap for older model with cash on top !

Mint condition black blackberry 9900 unlocked boxed with eveything. I purchased the white housing which I will include in the sale. I have upgraded to a samsung s3 so do not require this phone but would still like a cheap 3g blackberry for bbm etc so therefore would not mind a swap with cash on top One thing I feel I need to mention about the phone, the sim slot is ever so slightly dodgy so need to fidget with the sim for phone to recognise or it might by because I have a micro sim in it so is bit difficult however does not affect the phone what so ever once in place, I am sure a normal sim which it tends to take would be fine, just tryna be as honest as I can. The price is final, offers of swaps are welcome but only older bb models with 3g. Thanks