Do not fall for this scam! I wish I had seen this before because I JUST gave them my credit card information. I was wondering why there was an error message. Also I could barely hear the mans voice on the phone, he was going in and out. I tried to look up the company online and that didn't work thats when I put the phone number in, but it was already too late.
Call the company that issued your credit card - the number is on the back of the card or on the statement. Do it RIGHT NOW. Tell them what happened. If you work fast enough you might be able to get the card cancelled before the scammers spend any of your money.