joe.none@gmail.com, j.oenone@gmail.com, joenone@gmail.com, joenon.e@gmail.com is the same email/account as far as google is concerned. You should be able to login into your gmail/google account with either of these and your existing password simply because google doesnt care about that dot in the username. So your problem is not with gmail, but with whoever is using your email account to register for things.