"Please note that we've recently issued a payment to you for your Google AdSense earnings on Feb 25, 2014. Your payment has been sent and should be arriving shortly. For more information, please log into your account and visit your Payment summary page. You may also be able to find a reference number there to track or pick up your payment."
find a reference number there to track or pick up your payment
Which for most folks, is as useful as teets on a bull.
In my own case I'm fairly certain my own bank are the culprits once Google have released vast sums of money into the international banking system. They seems to only process relatively small international transactions twice daily.
Were AdSense to send me $250 million I have no doubt my bank's investment advisors would be on the phone to me within microseconds - 24/7.