If you'd like to use a different billing plan, you can downgrade your organization's GitHub Marketplace app at any time.
When you downgrade an app, your payment method is credited a prorated amount based on the time remaining until your next billing date. For more information, see "About billing for GitHub Marketplace."
Canceling an app or downgrading an app to free does not affect your other paid subcriptions on GitHub. If you want to cease all of your paid subscriptions on GitHub, you must downgrade each paid subscription separately.
Tip: Only owners can purchase, install, or cancel apps and manage app billing for an organization.
In the top right corner of GitHub, click your profile photo, then click Your profile.
On the left side of your profile page, under "Organizations", click the icon for your organization.
Under your organization name, click Settings.
In your organization's Settings sidebar, click Billing.
In the "Marketplace Purchases" section, next to the app you'd like to downgrade, click Edit.
Under "Edit your plan," use the drop-down menu, and click on a new plan.
If you chose a unit plan, type a new quantity.
Review the information about your new plan and billing information, then click Issue plan changes.