After a purchase online for a camcorder i was asked to call back in an email. In that conversation the sales person suggested me a series of additional purchases. I agreed to a number of them and when the person quoted the final price it did not match my addition. I felt uncomfortable about the purchase and asked the sales person to cancel it. He informed me that he could not do that and that he would go ahead.

At this point I asked to talk to a supervisor and he said he was the supervisor. Then I said that he would be able to cancel my order. He said if he did that he could contact all other sellers to want them about me. At this point I had no doubt i was being a victim of a scam. I asked him again to please cancel my order and he said that he could go ahead with the order and hung up the phone.

I would really appreciate if someone could give me advise on what to do next.