It looks like you need to request Freshworks to delete an app from the Freshworks Marketplace but you don’t have access to the account. To do this, you can reach out to the Platform team by creating a ticket and providing them with the necessary documents to prove your account ownership. Once your request is verified, they can delete the app from Marketplace.
Additionally, whenever you are building new apps, take a minute to scroll through the review and listing process for Marketplace apps.