A WebmasterWorld thread by netmeg notes that Google AdSense is now offering some publishers email support.
There were rumors of better support coming for AdSense publishers for years but nothing really came until today.
Those publishers earning more than $25 per week, on a consistent basis, are eligible for email support from Google AdSense. Of course, those earning a lot more have their own Google AdSense representatives they can email directly or even call.
To check to see if you are eligible, go to this page. If it says you are eligible, then great. It should say, "The Google Account you're signed in to is associated with an AdSense account that is eligible for email support." Otherwise, you are out of luck.
Here is a screen shot:
For more on the support eligibility, see this page.
I do not believe Google has announced this formally on their blog yet.
Forum discussion at WebmasterWorld.