I bought a pair of them last December from
American Heels, they will ship internationally. I've also bought other shoes from the above mentioned ebay seller
heelbuy.
The heels are a touch under 7 inches on size 11. The problem is the ball of your foot is along the arch, not on the ground, so you tend to slide forward.
I think that's visible in the pictures in
this posting.
I fixed it with expanding insulating foam as described
here.
Now if I could only get all the above links to work right...