In order to subscribe with the promo code, you would need first to follow these steps:
1) Go to http://www.therugbychannel.tv/#
2) Click on Log-In
3) Enter your email and password
4) Go to your account by clicking on your user-name
5) Click on Subscription
6) Select monthly or yearly plan depending on Promo Code
7) Click on Promo code
8) Enter your Promo code
9) Click on Apply
9) Follow the instructions
Please let us know if there is anything else we can help you with.
NOTE: Promo code cannot be used for iTunes or existing subscription.