How could they feasibly provide this? They would need to provide for essentially everyone that has a computer, and anything they did provide would be filled with people asking things like "my mouse is broken, how do I fix it?"
In addition to what Aaron said, I'm obviously not talking about providing technical support for people who don't know how to search for things in Google. But services where an exchange of money happens definitely require adequate customer care.
There is an automated reason why this guy's having trouble. Google could easily look up a text string they've stored, based on that reason, and tack it on to the guy's account. Something more specific than the unhelpful low quality message he's getting.
Anyone who uses spamassassin, look at the X-Spam-Status header in a message, it could be that terse:
X-Spam-Status: No, hits=-100.7 required=3.0 tests=BAYES_20,HTML_MESSAGE,USER_IN_WHITELIST autolearn=ham version=3.002005