Today I noticed that the Stieg Larsson books had a 100% credit card rebate (not mentioned on the homepage).
As usual I used my Dutch Visa credit card with a valid USA address, but payment was not accepted. My entropay card was also not accepted.
It seems there is an extra check now when paying with a credit card.
Hoping that the new check was IP based I bought an AlwaysVPN account (I did not want to send my credit card details using a site like
www.hidemyass.com).
Using the AlwaysVPN connection I could pay with my Dutch Visa card using a valid USA addres.
So it seems they now check if the country of your IP-address is the same country as the one used for the credit card payment.
I also tried using micropay and country USA, that still works okay.