Currently all coin purchases made via our games are handled directly by Facebook. We do not have access to your purchase information in our system. To add, remove, or edit your Credit Card from your Facebook account please follow below direction:
Select the following link: https://secure.facebook.com/settings?tab=payments
Beside the "Payment Methods" heading, select the "Manage" link.
The Credit Card(s) will now be displayed. Select the "Remove" link followed by the "Remove My Card" beside the cards you want to remove.
Select the "Close" link once you have removed the cards in question.
You will also be able to add a new Credit Card for the same "Payment Methods" link. Fill out the necessary Credit Card information and select the "Add" button.