美国采购需求：天然精油、卡斯蒂利亚皂、护手霜、护肤品

I've encountered an issue with the pump designed for bottles. It seems to be malfunctioning, and I'm looking for assistance to resolve this matter as soon as possible. The last known usage was with a product from Mazone, and it's important that we clarify what could have gone wrong during its operation. Could you provide insights into potential troubleshooting steps or common problems associated with this type of pump? Additionally, if there are any recommended replacements or upgrades available, I would appreciate that info as well. Looking forward to your guidance on moving forward with this issue.