I'm not up-to-date on the pay per call scene but I know tech support has been (deservedly) hit hard recently.
Were these guys players in the PPC market or were they running solo and/or cold calling?
http://allfacebook.com/ftc-pairsys_b135629
Excerpt:
"Acting on a referral from Facebook, the Federal Trade Commission announced Friday that at the commission’s request, a federal court shut down the operations of Pairsys, an Albany, N.Y.-based company that coerced computer users into paying hundreds of dollars apiece for unnecessary technical support and software that was available free-of-charge.
According to the FTC, Pairsys employees cold-called computer users and posed as representatives of Facebook or Google, and the company was also behind online ads that indicated that its phone number was the technical support number for legitimate companies in the industry.
The FTC said that once Pairsys reached consumers, they were subject to high-pressure sales pitches from an overseas call center, in which victims were convinced to surrender remote access to their computers, after which they were led to believe that their PCs were infected with viruses and malware.
At that point, according to the commission, victims were charged $149 to $249 for bogus warranty programs and software that was already available free-of-charge, with some victims being charged as much as $600. The FTC alleged that Pairsys has brought in nearly $2.5 million from these practices since early 2012."