I don’t feel as though the customer has done anything wrong here.
He asked for something specific, it arrived differently, he calmly tried to explain and gave reference to show his evidence something wasn’t right and the bat maker through his toys out the pram.
I had a very similar experience with an ex forum sponsor renowned for not being able to make a bat to dead weight and make it to what he thought was the pickup weight.
If you buy something in good faith you expect to receive it, I don’t go to Asda and buy a packet of rice and get cous cous?