To provide free subscription access:
-Navigate to the Marketing tab
-Click on Settings under Coupons
-Create a new coupon for a discount of 100% that applies to subscriptions (you will select the applicable subscriptions), and set the duration to Forever.
-You can also limit the redemption date range and limit the number of redemptions
-Click create and provide this coupon code to anyone who needs free access
-During checkout, customers will enter the coupon code and click Apply
-After applying the coupon, the credit card information fields will disappear
-Customers should click Complete to finalize their order