So I sold a SNES game about 3 weeks ago, the bidder did not pay so I opened a non paying case against him, 4 days passed then i was able to close it. I got a final value fee credit and thought that was the end of it, until today I got a msg from the non paying bidder claiming he paid for the item 3 weeks ago and was asking where his game was. I double checked everything and there is no way he paid, so I msged him back asking if he had some type of payment reciept, he replied saying he was going to be leaving me bad feedback, now he hasnt yet but Im not sure if its because he cant or he just hasnt got around to it yet.

My question is this, can a buyer leave feedback after a non paying bidder case has been closed?