After finding that I can't reach increasing numbers of IPv6-only facilities and getting nowhere with my provider, I filed complaints with both OFCOM and the ASA on the basis that as IPv6 is a core Internet protocol, any company claiming to be an ISP and not providing it is engaging in misleading advertising.
Furthermore, I contended that companies which don't provide IPv6 are breaching the BSG code of open Internet practice, inasmuch as it is effectively an arbitrary filter on legally accessable internet content.
I pointed out that the companies in question HAVE IPv6 internally and up to their edge routers, but simply haven't bothered switching it on to consumers - and that they've been making misleading statements to users that "we're working on it, it'll be ready soon" for the last 8-12 years.
The ASA rejected that complaint on the basis that: Most consumers wouldn't consider IPv6 as part of their purchase decision, therefore it won't affect what ISP they go with. (I had put it to them that they SHOULDN'T HAVE TO)
OFCOM have rejected it on the basis that IPv6 is entirely optional in the UK and they regard IPv4 as sufficient.
Clearly there needs to be a paradigm shift forced on the "regulators" to make them face reality.
Do you want to stop spam, or do you just want to stop receiving it?