I've been dealing with exactly this myself recently. I had an old gmail hacked and stolen. Well the idiot didnt remove my main acct as the forwading address, so I began receiving emails for everything from his uber account to his facebook account.
No matter what answers I gave google about account creation, old passwords, no matter that I provided whatever they asked, that they sent a verification code that didn't even work, NOTHING restored my access. I even still have the forwarded emails! The emails themselves show how this kid took MY email.
Yet there is no way to get ahold of google other than their product forums, posting and praying to not get a cheap canned response (which is what happened to me).
It seems these companies, in trying to remove themselves from their users by as many degrees of separation as possible are doing this to themselves. If they simply interacted with their users and gave even the most rudimentary of ways to speak with someone (livechat, helpdesk, whatever) most of their problems would be handled at the first contact, instead of becoming huge issues which can possibly affect many people (try searching for 'gmail verification code wont work' or 'cant recover hacked gmail' it will be days of fun reading).
I was infuriated over simply losing an old worthless email to their shenanigans, I can't imagine seeing the startup I created stomped underfoot by a megacorp like an ant.
I used to LOVE google back in the early gmail/android days. They were the good guys. What happened?