You can cancel your automatic subscription renewal at any time from your iTunes account settings.
To terminate automatic subscription renewal, you must deselect the automatic subscription renewal option at most 24 hours before your subscription expires.
Subscriptions with in-app purchases will be renewed weekly, monthly or yearly according to the renewal scheme of the selected payment plan.
The cost will be charged to your iTunes account when you purchase a subscription package.
A one-time password is sent to the phone number you would like to see reports on, and this phone number is asked to grant permission.