Some of the larger Danish ISP has explained that they do not offer IPv6, because there's no demand. I very much doubt that they have any demand for IPv4 either, because most people don't know and don't care how the internet is delivered to them.

If it's NBN, Aussie Broadband and Superloop/Exetel have good IPv6 support with prefix delegation giving you a /56.

I'm on Aussie Broadband, but the building is with OptiComm -- a company that decided that their business model is lock-in contracts with the apartment builders and price-gouging of customers.

Yup, I have a /56 delegated. Now if I only had something at home that needs to be world accessible...

"I'm a software developer and I need it to do my job."

Even if it's not strictly true, that seems like a solid justification. Though obviously that won't work for the general public.

That is a wild response to give a customer. I'm surprised they are still in business if that's how they treat fairly reasonable customer requests.

Yeah, a normal ISP would just say "we don't have it".

What ISP is that? Name and shame. I'm Australian and want to know to avoid them.

OptiComm

You can't avoid them because they're not a retail telco, they provide wholesale/bulk services to apartment buildings with 15-year lock in contracts.