Why? Because when I moved here in 2009, a facilator in Jocotepec, Maria Barbosa, got me every card that was possible to get. I am pretty sure I had a real RFC card, but since then I have lost track of it, so I think that I have been assigned a generic one that is not real. I have not forgetten any password as I have typed sheets of them.
For awhile I had 2 temporary resident visa numbers which I thought was odd but no one cared. It confused things when I went to renew IMSS