Customer support, documentation, and warranty information for the apps you acquire through the marketplace are supplied by the vendor. These apps are not supported by the G Suite support team.
The support link for a Marketplace app is available on the details page for that app:
- Go to the Apps Marketplace at https://apps.google.com/marketplace.
- Locate the app and click it to open the details page.
- Scroll to the bottom of the page and click the Support link.