I made the mistake of using a Google-for-Business-Account for Ingress when I started almost 3 years ago.
I'm no more related to this company so they deactivated my account and thus I lost access to Ingress.
Is there any possibility to transfer an Ingress-account to another Google-Account? I read on Niantic's sites that this is not possible. But this was before they "split up" with Google.