I had a very similar experience when I listed my PS2 on Amazon.com. I received an email from amazon.com stating I had sold the PS2 with an international shipping address.
I then received an email from the buyer stating that he was buying this as a gift for his nephew and he needed it before his birthday and requested me to ship it asap. The english was terrible. I replied saying no problem, just let the final confirmation from amazon.com arrive and I will send it over.
I then got another email from amazon.com stating that the purchase was completed and I should ship the item immediately after which the funds would be deposited. This didnt make much sense to me, but at that time, since this was the first big product I was selling on amazon.com (the previous ones being cd's and books for a few bucks) I thought this was procedure and the payment will be transferred only after I ship the item and confirm it.
I received another email from the buyer stating that he had made the payment and I should ship the item. I was so glad I sold it for the price I had in mind, that I went home from work in the afternoon and cleaned it all up and packaged it like it were new and went to the post office. It cost me 40$ to ship and I came back to work feeling accomplished.
Something didnt feel right though so I just logged in on Amazon.com to see if I could see the funds on my account and if I needed to enter a shipping confirmation anywhere. Surprise Surprise, there was no such thing, the account balance showed zero, and my PS2 was still listed.
So I called amazon.com (oh and btw, calling amazon.com is not easy, first of all you have to google and find their customer support number and then there is no option to talk to someone unless u keep hitting the wrong number or wait for 20 minutes till the recorded message is complete)
I finally got through to someone and he checked my identity and then proceeded to tell me that there had been no activity related to my listing and it was still listed as available. I told him I got an email from amazon.com telling me that the sale was confirmed and he asked me the email address i received it from. I told him
so-so@amazon.com and then he said thats not us, we don't send email from such an ID, and he told me that this was fraud.
I rushed to the post office only to find out that my package had already been put in a truck and sent away to Sacramento. I then called USPS support and told them the whole story and requested that they stop the package from leaving sacramento. They took down my number and called me the next day saying they found it and it has been brought back to my nearby P.O. I went and collected it, but didnt get a refund on postage since they had already sent it out and I cancelled it.
I then got another email from the buyer asking me if I had shipped it, to which I didnt bother replying, I simply forwarded all the emails from him and the bogus amazon.com emails to amazon.com fraud report agency. I didnt receive any further emails and I closed my listing. I still have my PS2 as a reminder of this horrible experience.