On the subscription management page, click on the "Redeem coupon code" link.
A field will appear, enter your coupon (it is case-sensitive).
Click on the "Update subscription" button in the lower right.
On the subscription management page, click on the "Redeem coupon code" link.
A field will appear, enter your coupon (it is case-sensitive).
Click on the "Update subscription" button in the lower right.