Use your coupon code by following the steps below:
1, Visit http://nhltv.nhl.com/
2. Log in or register an account.
3. Click on the Profile button that is on the top right corner of the screen.
4. Select Add a subscription
5. Choose your preferred package and click on Select button.
6. Select coupon field and enter your code. Hit on Apply.
Please note that your coupon may be restricted to specific plans, so double-check that you are applying it to the correct plan option and depending on the offer, payment details may still be required.
Also, coupons cannot be used on existing subscriptions.