You may have to do a factory reset see here: https://support.google.com/googlenest/answer/7073477?hl=en
Make sure it is not listed in your Google home app. Make sure your software is up to date.
Hope that helps
It looks like we haven't heard back from the OP so I'm going to go ahead and lock the thread. Thanks MichaelD for the help here. If you have any further questions or concerns, feel free to create a new thread.
Have a great day,