OK let me share more detail. My personal account has 2 payment profiles, one that is individual and one that is an Organization type with just my name which has a Public Merchant section. The second one clearly came from some kind of long retired way to accept payments via an older iteration of Google Pay or Google Wallet, that I didn't end up actually using, and which has long been removed from the platform or failed to migrate to the newer Merchant Center, and as a result I cannot remove it or manage it in any way except to edit the name, address, and credit card indicator in use. Merchant Center declares that I have no Merchant Center account.

90% of my personal Google services appear to be tied to the organization one for some reason, but a few recent ones from the Google Store are now tied to my personal one, meaning I need to use the profile switcher to access and manage them. There is no way to move subscriptions between payment profiles and the only option is to close one which will terminate the services immediately and remove the billing history. The one I should remove is the Organization one, as I'm not an organization...

-.-

Meanwhile, I have a single owner LLC that had GCP projects in play before the company was founded. I had tried to set up two separate GCP billing accounts, one owned by my GSuite admin and one owned by my personal account, to bifurcate the projects that fell under the new company.

Somehow that resulted in the one and only payment profile associated with my GSuite business GAIA identity being that same organization payment profile from my personal account! So I can see and manage personal subscriptions on payments.google.com. There's no way to change this that I'm aware of short of working with GSuite support.

You can in fact make a new payment profile, and Google says you should do this when you move to another country, but the help docs themselves note that your existing services will continue to charge on the old one. Which I guess means you are expected to cancel all your Google services, delete your old payment profile so that you can sign back up for all of them in the new payment profile manually, and lose all history of your previous payments.

So there's Billing Accounts which point to Payment Accounts, and Payment Accounts which point to Payment Profiles. In true Google fashion, there's a tooltip on the Payment profile ID which says it used to be called Billing ID. That's not confusing at all.

This is just a few of the utterly baffling things I found while trying to work this out. It reminds me of how PayPal has active subscriptions that it's UI literally cannot manage because they are too old and were incorrectly migrated from one of the zillions of older M&A subscription products that they merged in in their history.