While you may have a legit fraudulent charge, this may be a scam. Always call the number on the back of your card, rather than using the number provided via phone call or text. No credit card company should be calling you and asking for your info. I read another article about this, and I wonder if maybe someone gets your cc number, makes a purchase, then puts the scam in motion. I dunno, could be just a crazy idea. In any case, just be safe and use the number on your card!!!