Please go to the options where your user name appears, in the upper right corner. Click there, and select there “Manager Subscription” or “Redeem Coupon”.
Since I never had to do it, I hope that will lead you to the right place. If I’m wrong, please wait until Michelle fills you in with the correct way, or use the “Contact Us” button in the lower right corner.
In hope that this is solved quickly for you,
My best wishes