Go to the Zeiss Visustore portal.
Pro tip: Bookmark your exact regional login page to avoid phishing attempts. zeiss visustore login
You log in correctly, but the authentication code never arrives via email or SMS. Causes: The email went to spam, or your cell carrier is blocking short-code SMS. Go to the Zeiss Visustore portal
The specific request for "login" details suggests this is a friction point for many users. Here is the breakdown of the authentication process: zeiss visustore login