How do I delete shipping addresses on MacOS for Wallet and Apple Pay?

That allows me to input one shipping address.

It is my "Apple Account".

There are no other addresses

The shipping addresses I'm trying to update, delete and add are in my Wallet. The Wallet isn't viewable on iCloud. The data is synced to iCloud (in theory), but the sync is indeterminant.

Apparently, if I enter a shipping address in "settings" on my Mac, that will synch to my phone. If I enter the same address using "contacts", that will also sync to my phone. I'll have two copies of the same address on my phone.

Some addresses on my phone I cannot delete, although if I go through some "unknown steps", I may be able to delete them on my phone. The "unknown steps" depend upon using the "Edit" icon in the upper right of the screen and/or selecting an address and having it identified as the default address and/or sliding an address left and maybe getting an edit button and a delete button or only an edit button and/or editing an address. The combination of which order to perform these steps is more than I'm willing to examine.

In the mean time, there is no way to delete a shipping address on the Mac.

Additionally, the credit cards on the mac may or may not be present on the iPhone. There appears to be no synching.