talk to a google rep?

[RUTHC]

I cannot sign in due to having put wrong birth year on form

[Jake]

It's really hard to get any live support for their free services. You probably have a better chance of finding a solution spending an hour searching through the Google support forums, perhaps starting with a web search for: Google application, wrong birth date.

The top 6 results look useful, like this one:
Google application, wrong birth date

Catch all contact page
http://www.google.com/contact/