美国采购需求：天然油、卡斯蒂利亚肥皂、护手霜、护肤品

I recently purchased a castor oil product, but unfortunately, the pump that came with it is not functioning correctly. This has made it quite difficult to use the product as intended. Rather than going through the hassle of returning the entire item, I would like to request the possibility of receiving a replacement pump instead. I believe this would be a more convenient solution for both of us. If you could arrange to send a new pump my way, it would be greatly appreciated. Thank you for your attention to this matter; I look forward to your prompt response regarding my request for a replacement.