We accept all major credit cards including Visa, Mastercard, Maestro, JCB, Discover and the Danish credit card, Dankort. We also accept PayPal. Unfortunately, it is not possible to pay with (non-Danish) American Express. This is not supported by the payment system we are currently using.
As a work-around, you can set up a free PayPal account, attach your AmEx card to this account and then pay for the Cookiebot subscription using your PayPal account. That way, the subscription fee will be charged to your AmEx card.