I once made a purchase from ebay about $300.00 worth of crest whitening strips, (used to do a little buy and sell items). Anyway, I never received the items and the loser never return my calls, emails. Tried reporting to ebay - no help, tried my bank - no help. This has been going on for a good 2 months or so. Finally I reported the seller to IFS, Internet fraud services, which is associated with the FBI, After I called them, they kept me in touch how the investigation is going. A week later I received an email from the seller that he will send me the items express mail -plus give me a couple of extra box for the troubles he had cause me and he repeatedly apologized for all the inconvenience.
The best part is within a day or two the IFS called me back and ask how it went and if I got my items or money back. I told them everthing is good, so I ask them what she said to them and how he quickly tried to refund me. She explained that Internet fraud is taken seriously and if the seller does not cooperate the state in which he resides will and can sue them for a lot worst and even jail time.
Sorry, but I cant find the link ot IFS. Make sure you have all the documents, checks, auction page, emails, etc.. printed out and fax or mail to IFS.
Goodluck.