Applying a Coupon Code
Coupon codes can be applied after you've signed up for an account, or alternatively when signing up for a new account. For a more comprehensive guide on billing, refer to: Billing
Applying a coupon code to an existing account
You can use a coupon code after you've signed up, by accessing your Account's subscription page.
Applying a coupon code when signing up
You can use a coupon code instead of payment information when signing up for a new account.