Google Nest Community

I cannot access my nest app due to the email it was set up with no longer exists and I have no access to the email.Is there anyway of changing my email address to access the account again. It wasn't set up through Google originally, it was set up thr...

My email address that was set up with my Nest is no longer active, is there anyway of just changing the email on my account so I can re access the nest app? My wife can still access the app on her phone and alter the nest but I can't on my phone.