DNS Services Domain server rip-off Vancouver, Washington

Received what looked like a legitimate invoice from DNS Services out of Vancouver Washington for "Managed DNS Backup Business Services", including Primary Domain, Name Server, Mail service, DNS Failover and Rest API.  It indicates that the "Statement Date" is 11-15-12. It says, "Payment Due Upon Receipt" and comes with an account no.  The back of the "invoice" at first appears to be a continuation of the invoice information, including change of address and "return check" charges.  Then as I read, I noted that the majority of the information on the back would "slam" you into a deal with DNS Services. 

I tried calling, but as you guessed by now, no one got on the phone.  They were always busy "helping other customers" at 360-529-5130.  Left a voice message, and as you guessed, it hasn't been returned. 

A lot of companies like mine may see the fake invoice and, because it looks so real, that they would pay it thinking that this may be a company associated with their web server.  There is no telling how many people were scammed by this fake invoice. 

BE AWARE!!!!