If you say so, you shouldn't buy it on Taobao, JD.COM and other platforms. It should be cash on delivery! If you don't pay, you refuse. They just said something to scare you. Don't be afraid. Call the police directly if necessary. Remember to record the other party's phone number and save the screenshot of the message! Also, don't take medicine to lose weight, you will regret it later. No diet drug is recognized by the state, including orlistat, which is only an adjuvant treatment for obesity!