Also, never expect AWS support to actually help with anything around billing or account setup, I had to close out an org on a project that was EOL and it was li

Also, never expect AWS support to actually help with anything around billing or account setup, I had to close out an org on a project that was EOL and it was like pulling teeth, their answer to every roadblock was "you should have known you'd need to have the credentials of your former employees, because we might have demanded their payment info too, as backup" etc. I ended up having to spin back up several email accounts so I could impersonate people who'd left years earlier, just to close their accounts (including add payment info to their accounts in order to close them... mind boggling).