You can convert your free subscription to a recurring or one-off subscription any time.
To convert your free subscription:
Open the ‘Subscription’ page
Click on the free subscription you want to convert.
You will be navigated to the subscription overview page.
Click on the ‘edit subscription’ button.
You will be navigated to the subscription edit page
You can edit the following details for your subscription
After editing the details click on the ‘update subscription’ button and the subscription will be updated.
You can view the changes on the subscription overview page as well as on the subscription page.