You can add or change your credit card details at any time by logging in to your profile. Please note that, you can only change your payment details for future orders. The details for existing orders will remain the same.

1. Click on the "My Settings" tab. Scroll down to "Payment Details". Click on "Manage Payment Methods".

2. Click on "Add Payment Method".

3. Select Credit Card from the drop down menu. The screen will reload and ask for your card details. Click "Add".