The free delivery code is only available with UK Standard delivery. If you enter the code and then select an alternative delivery method it will disregard the free delivery code.
Please be aware the free delivery promotion code needs to be entered in capital letters and cannot be used with any other promotion code. It is one promotion code per order.
To redeem the free delivery over £20 code, please type "FREEDEL20" into the promotion code box on the shopping bag page.