My mate has 'vintage' and possibly other multi k waxes. He however part owns Polished Bliss so therefore can justify the costs involved.
Don't be taken in by the 'free refills' as it takes months, costs hundreds in shipping and insurance and is an all round pain in the hoop with customs as they want to charge duty on the insured value and have a big fight everytime it comes back into the country.
I get free refills on my Supernatural, always the most up to date version, as I have the wood pot!