Google is too complex of an organization, and the left hand doesn't know what the right hand is doing. So issues become lost between CS, security, and accounting.
I've seen this from the other side. I've also seen it get mitigated by giving someone (customer service) ownership of the problem, and giving them enough organizational support to twist arms in other departments as needed.
About 71% of the 17 million right hands are not aware that any other hands exist, much less the 13 million gripping hands.
See the problem here?
It's not that hard, invest in customer service, understand that not everything can be handled by an algorithm and you won't have these classes of issues. Is it expensive? Sure. At some point though you're going to need some system that allows human intervention when things have gone off the rails.