I would like to ask you a little.
If him refuses for repay. That means Game Over for me right? Why I ask that! Because he open case "didn't receive an item case" date 02-Oct-15 after received an item received date is 10-Sep-15 show in post system.
That is very possible that he will have the intent to cheat, and he is a newest account and (0)feedback, so he don't worry for change new account.