Cambridge Who's Who ripoff, scam Uniondale, New York

I didn't know that this was a ripoff. Now I know, and my next question is, how do I get a refund? I did get an e-mail confirmation of my "membership" and I simply could not afford the "gold" or "platinum" memberships, so instead, I agreed to a two year membership at $189 + postage and handling, which came to something like $208 or some figure like that.

I thought it was some big honor to receive this. Admittedly, I nominated myself just out of curiosity to see what would happen. Honestly, I don't have that big-deal of a career, I just work as a paraprofessional librarian in the outreach capacity but I am one of many in my department who does the same job. I'm no better or do no more than my co-workers. So do I call my credit card company for a refund, or what? What's the next step I should take to recoup my money?