Explanation: Can you buy vouchers (from Amazon, PlayStation, Xbox, etc.) that are valid for foreign countries e.g. The USA here in Germany? Regardless of whether it's on the Internet or in a shop.
At Amazon, you log into the relevant foreign Amazon and buy the voucher like here - at least the digital ones.
Pay by credit card.
Yes, you can. There are different websites for this.
Do you have any examples?