Deleting personal data Apple is collecting on me without my consent

Under Apple Wallet settings on my Mac are listed a number of addresses, one of which I never disclose and certainly not to Apple. I don't know where they got it from (automatically associate information from a contact in my address book with it?) as I've not disclosed it, barely ever used Wallet (just for like the occasional boarding pass or once a travel card), and have Siri disabled across devices. So first, I want to know how they got it because this feels so invasive. Second, I want to delete these addresses but there are no options for doing so (these are listed in a dropdown menu to select from) and nor do these options appear on my idevices (only on Mac's settings page).