Please, select the number of credits you need. One credit = batch test for one campaign. A batch test is when you send a campaign to the Inboxpath Seed List all at once. If you send a campaign to only one email from the Seed List, then you send the same campaign again to the same or another Seed List email, you may use more than one credit depending on the time difference the campaign arrives.
IMPORTANT: SPAM Test and Analysis Credits don't expire and are NOT REFUNDABLE. Unused credits will remain in your account for future use.