Not to be too presumptuous, but my guess is you have not done much with online buying/sellling and or paypal. There are a few lessons to be learned on this thread. If I was attempting to buy this guitar, I would have had, at a minimum, the following BEFORE even attempting to set up any kind of payment: 1) Phone conversation with the seller. You can usually sniff out a fraud more easily if you speak with someone, plus, you have one more piece of info (legit phone #) on the seller. 2) Serial Number and photo's to back it up. PERIOD. If the seller isn't willing to talk on the phone or provide this info, it's not worth the risk. Also, he absolutely did the right thing by requesting a paypal invoice. It's the only way you have recourse through paypal. He also did the right thing by putting a halt to everything IMMEDIATELY. You NEVER wait for payment to clear and give someone the benfit of the doubt. It's sad, but that's today's world. As a seller, I ALWAYS have great communication with a buyer. Text, email, phone number, I always provide that info UP FRONT to any buyer, even if they don't request it. You have to watch this kind of stuff. Buyer beware if you will.