I'm not sure I'm following but I'll try to work through it with you!
The PDFs here are pay-what-you-want, but don't come with cards or any character creation info.
There should be a "Buy Now" button at the top of the page where you would get the PDFs. I think if you don't pay for them, they are not linked to your itch account.
International folks can buy cards from worldchamp.io/store. If you purchase anything there, there are instructions in your confirmation to get free download keys from me.