In rare cases it happens that you see this display after the registration. Then your address has been registered in the newsletter system, but you will not receive any newsletters. In this case, simply send an informal e-mail to firstname.lastname@example.org with the subject “Double registration”. We will then already know what to do …
A text is only necessary if the email address you registered with is different from the email address you use to send the informal email. Just write the registered address in the e-mail text.
After a short time you will receive a confirmation that the corresponding e-mail address is listed in the group of recipients.