And the telco of Nexus is Google! Google just pointed to contact Google.
And the telco of Nexus is Google! Google just pointed to contact Google.
It isn't, Google doesn't run their own mobile network or mobile virtual network (yet).
Contacting the technical support team of the company that provides you the SIM card that is inserted into the Nexus device will have an effect.
I know it seems backwards because the issue has actually been introduced with Google's OTA update but those technical support calls get escalated and eventually they'll end up back at Google (via the team that deals with carrier interaction).
The handset that attaches to a GSM network has to conform to many standards set out by the GSMA (GSM association) as well as many other local certification bodies and associations (one example is the handset must have the ability to call emergency services).
If complaints are made to the technical department of the carrier being used, the calls will eventually be escalated to a vendor/manufacturer of Google's size.
I've worked for various different cellular providers and I have personally seen such tickets.