Take my money.
Unfortunately that isn't really up to us as it depends on the credit card, the bank that issued it, and the merchant processor.
If you have an issue please open a support ticket with us if you haven't already.
Also you can try to pay through Paypal if you are having a problem adding the credit card directly to the saved credit cards menu.
I had no problem with my credit card (I live in Sweden).
You won't be notified about changes to this idea.