<prompt> Human: This afternoon I received a notification from my bank that a purchase of 4.4k was made on my master card at a Target store, and my account was immediately locked. I then was asked to use my card on a ATM to prove that Im not in US during that time. After I did this, I notified the bank and since Im not the primary cardholder, the bank told me they will have to sort this out with the main cardholder. To further complicate things, the card was issued by a Chinese bank.I search for similar cases online and thought it maybe a online purchase so I contacted Target to see if they can cancel the order. But I was told it was made in a retail store at San Diego. The store manager told me that they cannot provide any information to me directly, only to the bank and police. At this moment Im just waiting for the bank to revert the charges, but Im concerned by various complaints online about my banks incompetence on credit card fraud issues. I wonder if theres anything I can do now, should I call the police? Thanks in advance.  <response>: Contact the police and freeze your credit. 