Unfortunately we are unable to retroactively apply discount codes to an order that has already been processed. For more information please refer to our price adjustment policy which can be found here. "Any discount codes must be applied to the order before completing payment as we are unable to refund the value of the discount code once the order is completed. We recommend signing up to our newsletter and liking our Facebook to ensure that you are always updated on our sales and special offers. "
When applying discount codes, they must be entered in either of the voucher code fields during checkout, as circled in red below:
When a code is correctly applied it will appear at checkout as per the below image: