I use broadband and cannot access any part of goldkey.com at all

Not the site, or any domains listed with them
Yet when I connect using dialup, which has a different IP, I can access all aspects of the site.

I have emailed the owner of goldkey as to why my IP is blocked and could he please unblock it, but have never heard back.

I live in NZ and my broadband IP looks very much like a Chinese one, which I assume is the reason why it is blocked.

Can anyone help me please?
It is ONLY goldkey I can't get to, I do not have this problem with any other site, and I can't logon using dialup often as my ISP charges me a ridiculous amount of money everytime I do