Business Account Settings
Within the business account settings you may receive an overview of all the email tests you have administered and all email test credits your organization has purchased.
In the Email tests tab you get access to the full list of email tests performed in your business account, with information on the user performing the test, the relevant business unit and the number of spent credits.
In the Credits tab you may view the current number of credits available to your company, assign credits to individual business units, and browse the history of the credit balance. To assign credits to a business unit, modify the Balance column in the row containing the relevant business unit: