[nznog] phishing site for ISPs?

Evening, Anyone from slingshot on here and can confirm this is a phishing site or some strange 3rd party site that slingshot is using? Never seen phishers target ISP accounts before? I have an italk account with slingshot, so this makes me wonder if perhaps a database has been compromised containing email accounts, or if someone is just targeting any & every .nz email address; has anyone else without a slingshot acc seen this? See attached. Barry