I'll go out on a limb here and suggest that a good number of people who feel they have been short changed have never had their material put into a form where they could have the material assayed to know exactly what is there.
Then there's the guys paying $16 per pennyweight for 14 karat scrap and they expect you to refine their gold for 1%. Meanwhile their margin is huge. In that case the refiner who gets you for an extra percentage point or 2 is still not honest, but the real looser is the customer who sold his scrap to the middle man.
I hope we get some details of actual refiner transactions here so we can try and ferret out what went wrong and what can be done to prevent it.
Then there's the guys paying $16 per pennyweight for 14 karat scrap and they expect you to refine their gold for 1%. Meanwhile their margin is huge. In that case the refiner who gets you for an extra percentage point or 2 is still not honest, but the real looser is the customer who sold his scrap to the middle man.
I hope we get some details of actual refiner transactions here so we can try and ferret out what went wrong and what can be done to prevent it.