Isn't in more like you're listening to a car owner who removed the 3rd gear from his vehicle and expects the mechanic to make the car work just as good without it?
I usually send a rather dry email which explains what I want in order to resolve the issue, and then end it with, "I will wait 24 hours for a response before filing a complaint with the Better Business Bureau".
This usually results in a quick resolution. When it doesn't, the BBB usually comes through for me.
Incidentally, I see that fancy.com has a D- rating on the BBB website. However, I also see that they have responded to the individual complaints and resolved issues, so it sounds like they would be responsive to a complaint filed there if you have to go that route.
In your message, you mention that "Gmail says joe.none & joenone are the same email addresses, but I can guarantee you this is not the case."
However, the experience you have described seems to prove that it IS the case - i.e. you are receiving messages sent to either address. The other person is attempting to reset their password every other day because they cannot login to your account (since they don't know the password for your account).
It seems to be a simple case of a user who does not know their own gmail address. Admittedly, this happens more frequently with aol users than gmail users.
Anyway, since you have all his personal (including his banking details) emails, it shouldn't be too difficult to find a phone number of physical address to contact him.
Just don't reference this link...if his first language isn't English, and he finds this information on a "hacker website", he may contact Google to reset YOUR password :-)