[mothered]

Faulty phone being replaced for new one. Boxing.

You should've opted for the wrong Item received method. You won't have an Issue with the carrier checking the wrong Item being placed.

In this case, plead Ignorance by sealing the label, and reassure him the Item Is enclosed. Start a friendly conversation, talk about "his" Interests and so forth- with the Intention to get him on your side, hence take your word for It.