Checkout from store wont load as expecgted

[tforsman]

I'm trying to buy a game from the site: https://uk.gamesplanet.com
You get to the point where you should choose visa or mastercard from: https://uk.gamesplanet.com/secure/checkout.html

Then push Confirm your order and should be able to fill in card number and so on, that page won't load and you get redirected to main page again and your basket is empty.
works fine in other browsers.