Login to your Campaign Monitor account and go to the Lists & subscribers section and find the list that you chose to monitor. Select Add new subscribers from the right sidebar.
Enter the email address in the field that you’d like to use. Make sure that you haven’t used this email address for Coupon Carrier testing before since it keeps track of which email addresses have received codes. If a code have been assigned to an email address previously then it will be skipped and nothing will happen. This is to prevent misuse.