Cant Login – Login redirected away from my login URL

When my client logs into DeniseMilani.org
http://denisemilani.org/wp-login.php
– they get redirected…
to this…
http://denisemilani_org.1.com.ar/wp-login.php

I went and had a look at the PhP dm_wfLogins
And there are a bunch of login attemps
aaa, admin, administrator…it goes on for many many pages. So somebody worked hard at cracking this….
I have a 26 character password which obviously helped

But they added some redirect and although they can’t access the site, neither can I.