If you suspect an identity thief has filed a change of address with the post office or has used the mail to commit fraud, notify the local Postal Inspector (800-275-8777). Find out where the fraudulent credit cards were sent and notify the local Postmaster for that address to forward all mail in your name to your own address. You may also need to talk to the mail carrier. If you believe your mail has been stolen, contact the U.S. Postal Inspection Service at www.usps.com/postalinspectors.