美国采购需求：天然油、卡斯蒂利亚肥皂、护手霜、护肤品

I've been using a jojoba oil product I ordered a few months back, and I've run into an issue. The pump doesn't seem to work at all when I try to open it. I just can't get it to pump out any oil, which is really frustrating. Could you please provide some guidance on how to fix this? Is there a specific technique I should be using, or could it be a defect? Any help would be appreciated, as I want to get the most out of my purchase. Thanks!