You may not be using the correct login details. When you first subscribed, you should have received an email with your login information. Please double-check to make sure that you're using the correct username and password. You can do this by going to your email and to search for Immosurf. Don’t forget to check your Spam or Ad folder.
If you have the email address you used to create your profile, you can reset your password here. When you click on the link and fill in your email address, you will receive instructions on how to reset your password by email.
Another possibility is that you may have registered on a different Immosurf website. Please ensure that you're trying to log in on the correct website. Look at the extension of the email you received, it could also be a sister website like rentola.de, or rentola.com or another brand like rentola.fr. If you're still experiencing issues, click here to contact customer service.