How to Cancel G Suite
Login to your Google Admin Console with an administrator account.
Head to the Admin console homepage and click on Billing.
Select Subscriptions and find your G Suite subscription.
Select Actions and Cancel Subscription.
If you have numerous subscriptions and only want to cancel G Suite, select Yes to complete the cancellation.
If you have only subscribed to G Suite, check the box to confirm that your data is backed up and you are ready to delete your G Suite account.
Select Delete My Domain to delete your organization’s account.