8-Pack Hanes Boxer Brief

From the ad:
“In the box: (Some items may be missing due to this product being open box condition)”

Wait. What? Uh. Does this mean I’d get a pack that is supposed to be a 4 pack but some of the items might be missing making it a less-than-a-4-pack?

From the ad:
“a tested good customer return”

What the $h*t does that even mean in the context of underwear?