When I click the GET button, I'm immediately told that there's no connection and to try again.
However, I do have a connection, as I can browse the web, open STEAM and see my games there, some of which will auto-update, etc.
I'm posting this from the same PC, so clearly a connection isn't the issue.
I've been trying now for several days, but still the same message appears.
I also redownloaded the game client, but even after a reinstall, I get the same message.