There are two wares missing (you could specify what exactly is missing) from your last shipment in total. Our customer has distributed those pieces to their customer (?), therefore, they do not have the information of these pieces missing from a carton no. X, and are unable to provide us with the photo of it as a proof. We would appreciate if you helped us by reminding your staff to pay more attention on packing the goods henceforth. Thank you for your cooperation. (You do not have a follow-up presented)
I don't really get what you wanted to say, so..