求翻成英文我在贵网站购物时因为忘了修改数量只能下了同一商品的两个订单,但是已经设置了合并发货,现在依然是分开收取了两份运

Hi, I have ordered some items on your website, but I forgot to change the quantity. As a result, I ordered the same item twice, but I have merged those two shipment. Somehow, I was charged shipping fees twice. I was wondering how I can get the problem solved.
= = 稍微改了一下 但是具体意思是一样的