Here in Germany you can have them delivered, but you are required to sign yourself.

I bought it once the Oled came out.

Works on my Beamer, 3 different TVs and a Capture card. Haven used Displayport on it yet.

I use the adapter and it just works. I haven’t removed the adapter from the dock since I got it and the adapter also works with my android tablet, but only without the tablet case. But since it works without the adapter then the adapter is probably broken. Check for bent pins.