You can also pay securely using VISA, Mastercard or American Express. Select the "Credit card" payment option when completing your purchase. A new form will open, where you enter your card details: name, card number, expiry date and verification code.
During the checkout process, you will be asked to verify your payment using 3D Secure ('Verified by Visa', 'MasterCard SecureCode', 'American Express SafeKey'). If you have not done so previously, you will have to register your payment card for 3D Secure. You can usually do this online. Visit your bank's website for more information.