<prompt> Human: Someone acquired my CC information, and I have no idea how. They used it to charge a 3k balance on account. I contacted CC and disputed charge and let them know this was a fraudulent transaction. They tell me they will do nothing for me because the card was physically swiped and a signature was provided for the transaction. I have asked them to compare my signature with the one used but they have not. It has been over 3 months and I am getting nowhere. What is my next course of action?  <response>: 1 Call the number on the card. This should connect you to the bank Chase, Wells, Bank of America etc. 2 MasterCard Visa are payment processing companies separate from the bank that issued the credit card. 3 All banks must adhere to the charge backdispute fraud claims procedures. 4 Each bank also has its own additional policies and courtesies5 Banks must file disputesfraud claims appropriately. Keep in mind, you call your bank who then issues the chargeback by contacting the merchants bank via a system set up by Visa or MasterCard respectively. 6 Wording is critical. Call the number ask to be transferred to fraud. Then request a US based supervisor. That may help. Dont just say its fraud and yell. Find the right person.7 If calls do not work, right a letter. Specifically mention each transaction, amount, date etc. 