[mothered]

First of all, thanks once again for your help. It’s invaluable.

You're welcome.

The communication took place via call and I highly doubt it was recorded.

That's what I wanted to clarify.

If It was a text message, It would've been a different story altogether.

The tracking number still states “in delivery” so it wasn’t updated when the package was handed to me.

It will be updated and marked as delivered. It's just a question of when, and not If.

Your only concern Is that you're (seemingly) still waiting for the package to arrive.

I’m still on the fence between the dna or the missing item because of all the variables, specially because according to the tracking number it was not yet delivered.

If It remains at "In delivery", It works to your advantage - obviously they will not locate the package, hence It's lost In transit.

That aside, as said, both methods are equally effective so It's your call as to which of the two you're comfortable and most Importantly, confident with.