Long story short: I made a best offer on a laptop on eBay. Seller accepted. I offered to pay him off eBay, asking to lower the price a little more. He accepted. I paid him using PayPal "Purchase." He sent a laptop with a different configuration than in the eBay ad. He claims he said he was selling a "New in box, Lenovo W520" and that's what he sent. I told him that he never stated he was sending me a different computer and I assumed we were talking about the one in the eBay ad. The only thing I have that says anything about the computer I thought I was receiving was in the subject line of the payment window saying "LENOVO i7 2720QM" and I received a computer with the i7 2620m processor. Will I win this dispute? Was that assumption and subject line enough? Or will the seller win on that technicality that I wasn't more specific and I will be out $1200.