出品者は特別な対応をとってくれない。
私は不安でしかたない。
早急に返金してほしいです。
変わりに届いた”○○”はどうしたらよいのでしょうか?
The product does not fit specially.
I am so worried, but I don't have any good idea.
I just want you to refund it immediately.
And how to deal with the product "○○" which arrived by mistake?