You can try these to number from the United States Attorney's Office.
1.
Computer Crimes Section focuses on the ever-growing area of internet crime; computer intrusions, denial of service attacks, theft of intellectual property and child exploitation. Cases are primarily investigated by the FBI, United States Secret Service, Immigration and Customs Enforcement and the Postal Service.
Information on how to contact those agencies can be found on this website under "How to Report a Crime." The Chief of Computer Crimes, Michael L. Levy, can be reached at (215) 861-8599.
2.
The Fraud Section oversees federal criminal prosecution of offenses such as:
Consumer fraud, including telemarketing fraud, sweepstakes and premiums fraud, fraud by businesses against customers
Computer fraud, including use of the internet to commit fraud
In addition to laws prohibiting specific unlawful activity, broad federal statutes protect against fraud, making any fraudulent scheme a federal crime if the United States mail or a courier service is used in its commission, or if interstate wire transfers, telephone calls, fax transmissions, e-mails or other interstate communications are used in the fraud.
If anyone has information regarding frauds, please call the U.S. Attorney's Office, Fraud Section, at (215) 861-8570. Peter Schenck is the Chief of the Fraud Section. The FBI and the U.S. Postal Inspection Service may also be contacted at the telephone numbers previously listed.