An externality is a cost borne by an unrelated third party. That is not the case here. These are two party arrangements. You and Google have engaged in a contra

An externality is a cost borne by an unrelated third party. That is not the case here. These are two party arrangements. You and Google have engaged in a contract; Google is providing you email in exchange for your eyeballs, and there are terms and agreements. There should still be a solution though. Maybe this is a terrible idea, but one idea: Google could sell a service where you pay them $200 and they thoroughly review your case, tell you what happened and work with you to restore access to data, maybe even setup email forwarding for 90 days or something that comes reasonably close to making you whole even if they can't restore service. If in the course of doing this work they figure out they screwed up closing the account in the first place, the money is refunded. Of course fraudsters would not generally want to sign-up and pay this money as - even if the information of how they were caught was worth $200 - that would create a paper-trail. And it could still be the case that Google is under a FISA letter or something and can't fulfill this service, and in that case they'd refund your money as well.