美国采购需求：天然油、卡斯蒂利亚肥皂、护手霜、护肤品

I'm having some issues with the pump I purchased recently. Despite my best efforts to twist it in both directions, it remains locked and unresponsive. I've followed the basic setup instructions, but it doesn't seem to function as expected. This is quite frustrating, and I'm unsure of what my next steps should be. Could you please provide some troubleshooting tips or guidance on how to unlock or reset the pump? I want to make sure I'm not missing any steps that could resolve this issue. Any advice or assistance you can offer would be greatly appreciated, as I need to get this sorted out as soon as possible. Thanks!