icm websites Charged credit card when I decided not to continue the registration process and wont refund money Internet

Two months ago I checked into a "work from home" business.  It said I had to fill out all of my info including my credit card info (duh!).  Before I even finished the process I cancelled it and never agreed to their final registration agreement.  Now, two months later, I find out they have been charging my credit card.  When I call them they say once I put the credit card info in it's too late to change it (even if you don't agree to the end agreement) and won't refund my money.  They say that they have "rendered services" even though I have never pulled up anything to do with their site, etc after that.  Also...to begin with, they represented themselves as a "work from home" business...come to find out all they do is web sites, not a business opportunity at all!!!!