We're updating our app to conform to the following Apple requirement - https://developer.apple.com/news/?id=mdkbobfo. We allow users to sign up for a subscription. We also allow users to sign up for trials. If they sign up for a trial, then delete their account, I concerned they'll unknowingly be billed. Is there any way for us to cancel their subscription if they are deleting their account with us? Thanks in advance for any insight.