I know it’s an old post but I found it while looking for anything about NPN.
I’ve been doing the jobs for them till I finally found out I was a part of the scam. People/signers were ripped off by the companies I was doing the signings for , and my phone number is now the only legit number, and I keep getting the calls from angry customers.
I did try to contact NPN and their vendors, but they all just disappeared.