Cancel Service
1
From your Subscriptions page, click the Manage button.

Screenshot with the Manage button
2
Enable the Free Plan option, and click the Review Changes button.

Screenshot with the Review Changes button
3
After confirming any feature and pricing changes, Click the Apply Changes button.

Screenshot with the Apply Changes button
4
Once applied, you can continue to use the pre-paid service until it expires at the end of your billing period.

Screenshot of the Billing | Named Graph page.