Unable to Unlink old Ring account so I can link new account - Directions did not work

I'm going in circles with Amazon and need help. The directions to unlink/link ring/amazon accounts do not work in my situation. I bought a Ring camera in 2020 and created a Ring account, linked with my Amazon account. That camera didn't function properly. I no longer have it. I just bought a new Ring product a couple of weeks ago. I tried to sign in with my old Ring account but did not have the password. I attempted to change the password but was prompted to call Ring for help. They told me that since I no longer have the old Ring to verify the serial number, I need to create a new Ring account. Then to contact Amazon to UNLINK the old Ring account so I can link the new one. Amazon's instructions did not help. They gave me a link to the Ring alexa skill and told me to disable it then enable it again with the new Ring account. The skill was not enabled to begin with. So I enabled it. It asked me to log in with my current Ring account, which I did. The page told me my ring SKILL was linked to my amazon account.. But the *accounts* were not linked. because my old Ring ACCOUNT was still linked and I could not link more than one account. How am I supposed to UNLINK my old account if the directions do not work in my case?