I just ordered (2) brake rotors for our daughter's car but it might be a week or two or a month or longer before I install them. I put them on a shelf in my garage and noticed one of the boxes was more dinged up and re-taped close. Lucky thing I checked.... Both had been opened and returned - neither rotor was in the plastic bag inside the box. First clue. Second clue was grime on one of the rotors while the other had greasy/dirty fingerprints on it. Glad I discovered this the same day they were delivered 'cause weeks later, and worse, when I was starting to work on it, it might be harder to claim this.
So I had to play their game to go through the return process. It would be simpler if they had a selection for "I was sent used or opened parts" and cut to the chase. Best choice I had to select was "Wrong part..." and even then, they still added something "it's unusual to receive (2) wrong parts" and made reconfirm. Luckily, it accepted it and they paid the return shipping and the replacements are on the way.