The procedure is the same as for any other subscription taken on the Google Play Store as described here.
Cancel a subscription
Uninstalling the app will not cancel your subscription.
- On your Android phone or tablet, open the Google Play Store
.
- Check if you’re signed in to the correct Google Account.
- Tap Menu
Subscriptions.
- Select the subscription you want to cancel.
- Tap Cancel subscription.
- Follow the instructions.