[azizouma]

When I received the package, I don't think it had any traces of having been opened before

For future reference, don't give out anymore details than what you have to - It may work against you.

In this case, simply say that the AirPods were missing and leave It at that.

Thanks you so much ! In that case, they asked me : "if the parcel had obvious traces of tearing, prior opening, etc.,
and by which means the package was sealed (opaque or transparent adhesive tape, staples,...)."

So I guess that my response was good regarding that right ?