Help with white screen during order confirmation on store.apple.com

Hii,

I wanted to buy something on the apple.com website with my Mac. I am having an Issue after filling out all the forms for the bill. The payment has been authorised but I keep being stuck on a white screen with an x at the top. I'm being asked if I want to cancel my purchase If I click out of the white screen onto the background but I can't "finish" my purchase.... weird. Internet connection is valid and stable, no VPN. Help?