Jesus Christ. The moral police are out today. Tell them you have no idea what they are talking about, you only received one. IF they want to press the issue, dispute every bill they will send you for it, they will eventually send it to a collection agency, dispute it right away, and be sure to tell the collection agency that if this invalid charge shows up on your credit report, you will sue them for violating the FCRA. These other guys are legally right, but whos to prove you recieved 2? Did they ship seperate? Did you sign for either (or both)? Did you acknowledge receipt of 2? BE smarter than them.