My two Canadian shipments, YOW3, lost 168+78+162pcs goods, are high value products, then the shipment expired and closed, the carrier gave me a signed receipt, but apply for a shipment discrepancy investigation to get the reply is that Amazon did not receive these goods, let us go to find the carrier to compensate for the problem is that if the goods have not been received, so the signing of the receipt of the role of what is it? What is the basis for us to apply for compensation in the future? Amazon also said that the receipt can only be used as a basis for the production of this shipment, what is the guarantee that we will sellers ship to the Amazon warehouse? Please Amazon give me a reasonable explanation @jeff