YOU SAID:
I bought an item with a promotion code and then returned the item.
INTO JAPANESE
プロモーションコード付きのアイテムを購入し、返品しました。
BACK INTO ENGLISH
I purchased an item with a promo code and returned it.
INTO JAPANESE
プロモーションコード付きのアイテムを購入し、返品しました。
BACK INTO ENGLISH
I purchased an item with a promo code and returned it.
That didn't even make that much sense in English.