Conyac で依頼された翻訳結果を公開

I am surprised that there were a substantial difference between the quantity of products I had delivered in the past and the quantity the receipt had actually been confirmed.
I believe that it is too critical to ignore the difference to have been occurred almost every time other than particular shipments.
Our company confirms the quantity of products 3 times before it is shipped out.
As you know, we requested an investigation for the difference of products this time. Some of the difference has been confirmed, but some of rejected.
What approach would you take for this matter? It is a huge matter for us that expensive products are have been lost, not those affordable ones.