I was hoping he'd close it on his end, I just checked what info I'm allowed to enter if I challenge it, and it's asking why I'm challenging the dispute with a comment box, and also asking for: delivery confirmation, proof showing the item was sent to the buyer's address, proof showing attempt to resolve the buyer's issues with the item, any other relevant information.

I'm wondering if he can even close the dispute on his end through eBay since it's saying he "filed a payment dispute with his payment institution directly". Maybe he would have to go through his bank?

I'll gather some info before I challenge it.