There’s a suggestion over at TMC that there may be a link to those who have (or had in the past) finance through Tesla. The message appears to be generated or at least passed through Tesla email servers for those folks. Other folks that bought cars with cash or other non-Tesla finance don’t seem to be seeing the message.
Either way it’s extremely odd and quite sensitive personal info that is being requested somewhat out of the blue.
@andrew*debbie may care to elaborate as I believe this is somewhat his area of expertise