Hi there Irene Murray,
Sorry for the late response, but I wanted to hop in here to address your concerns. Sorry to hear that you're having issues with your iPhone and Google Nest. I know these things can be complicated and confusing, but I'm happy to take a look.
I'm not quite sure what you are trying to accomplish, so if you don't mind, would you mind clarifying what Google device or application you are using, and what you are trying to do on it?
Also what troubleshooting steps have you taken to try and fix the issue?
I look forward to hearing back from you.
-from Garrett DS (Community Specialist)