There is a band named Abbie Gale from Greece. They've got a song called "Letters". Now that song in itself is not difficult to obtain--it's on itunes. But the obscure "Chris Nemmo Postman Mix" of the song? Fuhgeddaboudit. You'd have better luck tracking down the O.J. Simpson bloody glove or the Whitewater tapes.
Fortunately, I'm too dumb to give up that easy.
There exists a very hard-to-find compilation by Dimitris Papaspyropoulos called "Before the Summer Came" which has the song. Apparently it was distributed free in some magazine back in 2008.
I'll save you the trouble of finding it, because I did already. Listen for it on the upcoming Seductronica compilation coming soon.
In the meantime, here's a taste: