The point is they are claiming they understood "unit" to initially mean "bag". That seems incomprehensible, it'd mean indeed that they originally thought they w

The point is they are claiming they understood "unit" to initially mean "bag". That seems incomprehensible, it'd mean indeed that they originally thought they were being paid $41 per bag, not case, and then realized it was $41 per case only when they realized "unit" meant case.