Popmarket.com update 3

Popmarket emailed me back yesterday afternoon explaining that they had sent my confirmation receipt to the address associated with my PayPal account. I signed out of the email account we had been corresponding through and went to the other account. Sure enough, there was my confirmation.  That kind of seems like a bug in the system to me, because I sign in to their site, and indeed my popmarket.com ID is that first email address.