sbiddle:

Linuxluver: anz.co.nz doesn't work....I don't think it ever has. I guess they have not aliased it as a www resource in the DNS. 

But www.anz.co.nz works fine.

This was a common DNS issue ten years ago. I guess ANZ never really caught up. Or they have some other reason for only allowing the www.* form.  

anz.co.nz works fine for me and has done for years.

OK...then it is a Telecom DNS thing. It isn't working for me right now...and as far as I can recall....never has.

I have www.anz.co.nz bookmarked...and I recall doing that quite deliberately some time ago.