I am the CEO of a small software services based company(7 devs including me). We have been working for a customer for almost an year now. We created a job portal for these guys from the ground up.

They told me that thier business model was:

a. They put up ads on newspapers and other media.

b. People looking for jobs call them.

c. An agent tries to sell the caller, one of their products which helps them get a job.

d. They said that if a job seeker buys their "paid product" they hookup the job seeker with one of their employers, meaning that they had contacts through which they patch up job seekers and potential employers.

e. The job portal itself showed jobs which were scraped from careerbuilder, monster etc,.

That's what I knew when our company took up the job. It still sounds like a scam, but I did some research on these guys and found nothing suspicious. So, I went ahead and took up the job, trusted that I was not doing anything wrong, and everything was hunky dory.

Recently I found that the job-seekers didn't actually call them, It was the other way round. These guys got the information about people looking for jobs, and called them up trying to sell their product. Now, when I search for the company, I see a lot of complaints about these guys on ripoffreport.com and 800notes.com.

I am convinced that these guys are cheating people who are desperate to get jobs. And, I am gonna stop working on all their stuff right now. That is what I am gonna do. However, I need help figuring out a few things:

1. What would be the best way to tell them, that I am going to stop working on their projects?

2. Also, these guys have told me recently, that they want more developers and that they want to build more things. So, How do I cut them off completely?

3. How can a company like ours spot these scammers before taking up a job in the future?

4. Lastly, is there anything I can do, to undo the damage I've done to these job-seekers?

P.S Please upvote this so that, I can get this in front of as many eyes as possible. It's an anonymous account.

Thank you!