I bet your problem is that someone else has the same email but with a dot in it somewhere. I ran into this problem a few years back-- I had also registered lastname@gmail.com, and I started getting emails for l.astname@gmail.com and a couple other variations.
There was an Asian couple in Virginia, I got their emailed Apple Store receipts. And there was someone in South Africa who was renting out an apartment, so I got all kinds of information from prospective renters like photocopies of passports and pay stubs.
I ultimately had to abandon that address and get a different one.
"Because he's a character who's looking for his own identity, [He-Man is] an interesting role for an actor." -- Dolph Lundgren, "actor"