When this happens this is kind of scary at first. But know that you are protected. 

Go into your bank tomorrow and have them deactivate the card due to fraud and have them send you another one with a new pin as well. 

And file a claim and affidavit with the charges that aren't yours.

Current: EQ FICO 690, TU FICO 692, Walmart TU 737 EX FICO 726 Amex Pull(1/1/13) Starting total revolving credit: $2600 | Current total revolving credit: $21,600 Inquiries (12 Months): EQ 6 TU 4 EX 5 | Most Recent: 8/30/2012

2013 Goals: Freedom Signature Costco:True Earnings

Amex Zync(Unicorn) Chase Freedom$1500 Citizens Mastercard$5000