All you have to do is go to this website – https://www.ibm.com/marketplace/purchase/configuration/en/us... – sign in with your IBM ID (anyone can create one), and provide your details, and give your credit card number. I've successfully done it up to the step where you give your credit card, I haven't taken it further because I'm not sufficiently interested in this to justify to myself giving IBM so much money.

One thing I noticed – IBM does not want individual consumers as customers, only enterprises. If you say they live in the US, the order form says "IBM products are only available for commercial, academic, public, research, or other organizational use", and asks you for an organisation name. I am in Australia, so I give my country of Australia and home address, it then asks me to certify I am buying it for a business, and won't let the order process continue unless I tick it. For Australian orders, it also asks for an Australian Business Number (ABN), which you get from the government when you register a business with them. (Government agencies, and educational/religious/charitable/nonprofit/etc institutions, and trusts, are also eligible for them.) I guess the US equivalent would be an IRS EIN, or a DUNS number, but the US order form doesn't ask for one, just an organisation name.

Anyone in Australia, can get an ABN, but you have to tell the government you are running a business, and in theory they can revoke it if you aren't a real business (and occasionally they actually have). However, another way to get an ABN – anyone can incorporate a company, and when you do you get an Australian Company Number (ACN), and anyone with an ACN is automatically entitled to an ABN (the ABN is just the ACN with a couple of checksum digits prefixed). I actually own a company, which does nothing and has never done anything – one day I was daydreaming about starting my own business, so I created a corporation, and then I daydreamed a bit more, and then I parked the idea – but I pay US$200 a year to the government to keep my corporation alive, so I have a legitimate ABN to give them through that. There is no legal requirement for a corporation to do anything, a "shelf corporation" which stays forever dormant and just pays the annual fees (and engages in a few other pro forma annual legal rituals) is legally just as valid as a billion dollar company

If I gave them my credit card number, and let them charge all that $$$ to it – I expect they'd process the order. How are they supposed to know that my "business", despite being a real legal corporation, is actually just a "fantasy daydream business" not a real one? I don't see how they could tell. (I mean, I could be an independent contractor/consultant/freelancer working through that corporation, rather than a full-time employee – and maybe one day I shall be.) They could cancel the order and give me the $$$ back instead of fulfilling it, but I'd be surprised if they did that.

Indeed, ex-IBM employee Colin Paice in Scotland reports successfully buying it from them – https://colinpaice.blog/2020/06/29/getting-z-os-installed-on... – I guess one thing that may help – don't say it is for a hobby or personal use, claim it is for a business (which if you think about it, doesn't even have to be a lie – tell yourself a story about how you are going to use this to develop software to sell people, and if you believe your own story, that makes it true – who knows, believing in it might even make it happen – and if it doesn't ever actually happen, well a lot of businesses fail, often even just as they are getting started...)