How do you come up with that? It would be my responsibility if I was hand delivering the part my self. But I paid the post office to do that and they failed to do it. There was a third person brought in like most situations and the third person lost the part. I did not lose the part nor did he. The post office lost it and they should front the insurance money.
He has delivered to you!He has nothing to show for his money!You took his money, he has every right to expect you to deliver the part into his hands.However you choose to ship is under"your" responsibility.