I'm actually not sure what you guys should do about this. I was thinking, maybe lawyer up, not to sue anybody but to try to explain to Google that your app does not need any regulation, or perhaps send another kind of official document saying such, but then I remembered that Google (with its automated and/or outsourced support) would just ignore that kind of correspondence since they are just looking for a regulatory license - and since you don't need one, there is none to provide.