Reason欄に
It's defective or doesn't workとかかれてますが、FDレンズはもともとEFマウントのカメラでは使用できません。
不良品ではなくマウントを間違われたということですよね?
返品理由が間違っていると思われるのですが、いかがでしょうか?
It was written in the reason column that "It's defective or doesn't work". However, the FD lens cannot be used for the EF mount camera from the beginning. It is not a defective item, but it means that you had the wrong mount, doesn't it?
I believe that the reason for return is mistaken. What do you think?