yea seems like something is wrong with your address and that the system can't detect that you are located in the UK. I know about this problem here in Germany. It's very unlikely to ship something to the UK. We use more Great Britain or England as shipping destination. Maybe that's the problem because one of the lines said that they don't know the country.
I would leave them a message that you can't fulfill your order.
here is there contact address:
office@game4game.at
I hope everything will be sorted out and that things will turn out good. If they can't help you just let me know and I will be glad to forward one to you.