Bro, if u feel like want to "donate" that money to that fella,
then pls make ur payment ASAP.
sorry if I sound too rude, sometimes greedy mind just cover anything till u will believe it is true.
I have 1 fren face exactly the same thing like you, that seller show him everything even a actual iPhone photo with the seller name on the screen.
That seller offer my fren RM1.5k for 3GS 32GB (last year Nov)
I try so hard to convince my fren don't buy it,
but too bad my fren is like kena "brain wash"
and keep saying that seller got what prove bla bla bla,
endup he make the payment, received a "fake tracking number"
then disappear FOREVER.
my fren said he want go report international police, want do this do that,
at the end? Nothing he can do, after few months only he regret & said should listen to me earlier.

So, it's your choice