If you want to change the payment method for your sell order you are due to receive payment for, please go into your Cardyard account and go to payment method and save the correct details. If you wish to change the payment method for an order that has already been submitted, please contact Customer Support with the order number. Payment details need to be updated 12 hours before payment is due. Payment days are Monday, Wednesday and Friday. Once payment has been made, we are unable to change this.