Well first contact the seller and try to resolve the issue yourself, make sure you keep track of ever single email or pm that you send, its kinda hard to keep track of phone calls so just use that to get your point across. once the seller doesn't want to cooperate, contact YOUR local police dept, or sheriff dept (which over the case may be). tell them what happened and that you want to file a report for theft. i've heard some people say that they have contacted their local authorities and they've been told that the police can't do anything due to the person living in another state, that is complete BS they are just lazy and don't want to file all of the necessary paperwork. but they can and have to do something. the main thing is keep a record of all contact between you and the seller. and try to get as much information as possible, if it comes down to it, do what i did, and create a new email address and email the person saying that you are interested in some stuff they are selling and get their contact info that way. it's gonna take some time, but they will pay for it in the end. i was scammed back in april and now its december when things are finally moving forward.