Translator Reviews ( Japanese → English )

Japanese

拝啓
こちらのオーダーはMulti-Channel Fulfillment Order サービスを
使って1月20日にお届けしています。
しかしバイヤーは商品を受け取っていないとクレームを入れています。
履歴を確認していただければ商品を確かに届けているのが分かります。
この場合の対処法はどうすればよいでしょうか？
もしくはMulti-Channel Fulfillment Orderの配送ミスはありえますか？

English

Dear Sir,


This order was made through Multi-Channel Fulfillment Order Service and it should have arrived by January 20th. However, there is a complaint from the buyer that the goods have not arrived. Checking the record of the transaction would show that the goods have arrived at the buyer's place. In this case, what should we do to solve this problem?
Is it possible that there was a mistake from the delivery of Multi-Channel Fulfillment Order?