So, i have started selling some Software Antivirus on ebay. Only 7 dollars each. Licences are genuine. Today a buyer that purchased them on 6 Dec 2014, has opened a dispute mentioning "I tried to open the program and make it work but I had no luck I will need the disc." And of course paypal grab my 6,99 USD and now i have a negative balance. I mentioned in my description that nothing will be delivered via post, only by e-mail. I do not know what to say, all i can say is that 99.999% when a buyer opes a dispute he/she will win the dispute. So i have to refund him. Not a big deal at all, but guess what i really hate those buyers. Do you have any experience like this ?