No Acacia letter for me.

That rules out AVN and Traffic Cash. I've never done business with Matrix, so they're still a possibility. I've had a CE account, but not for 5+ years.
I don't have any video on my sites and never had, but apparently that means nothing, so I still could have received one. :P
[sigh] And I was so looking forward to turning them in to the FTC for a false bill.