A sign-up to watch for:

Email domain being used: hotmail.com
Domain being used: us0meds.com
IP address: 24.153.195.226
(Further information withheld for customer privacy reasons)

This person's order passed the fraud autocheck, but the card address was not from the same area as the ordering IP. A phone call got only the response, "Sorry, wrong number." I actually strongly suspect that someone's credit card is being used fraudulently, and have reported the matter.