I've sent the item today. It costs $26.49 to ship it from Japan. Since your mistake made me ship it back, please refund the amount of the money. (229.98+26.49=265.47)
I sent back the item today, and it costs $26.49. I am obliged to send back the item due to your mistake. I, therefore, request you to refund the amount of $265.47 including the shipping charge $26.49 to me.