This must be done 24 hours before the end of a subscription period or a trial.
Go to Device Settings → Your name → Subscriptions
In Active subscriptions, tap on the Moonly app and choose "Cancel Subscription".
Open the Google Play Store (check if you’re signed in to the correct account)
Tap Menu → Subscriptions
Select the subscription and tap "Cancel subscription"
Follow the instructions.
Hope you will join Moonly Plus again in future ✨