How to add a coupon to a subscription order

Below are steps to apply a discount code for a future subscription order: 

• Log into your Hairstory account here
• Click on My Account 
• Click on Subscriptions
• Below 'Next shipment content' you will see a field to enter your code   

Please be sure that your code will be valid on your next ship date. If it won't be, you can click 'Edit Shipping Date' and click 'Ship next shipment now'.