★のMサイズが在庫切れで残念です。
代替え商品で★のLサイズへ追加料金無しで変更可能でしょうか？
変更ができないか追加料金が必要であれば返金でお願いします。
I regret to know that the size in M of ★ is out of stock now.
Then, would it be possible to change my order to size in L of ★ with no additional charge alternatively?
If you cannot accept my request for the change or when you need an additional charge for it, then, would you refund, please?
