To prevent fraud and protect our customers we require an additional layer of security for all card payments. If your card is not enrolled in 3D secure / VISA Verify you will not be able to complete the payment. If this happens you have two options: 1. Contact your bank to enroll your card with 3D secure 2. Make the payment via PayPal instead. It is a safe and efficient service and PayPal accept most major credit and debit cards (including AMEX)