What should the courier in Tong Yuan do if he is afraid of being retaliated?

Hey, take a knife with you. Now in this society, give me one thing and get a bunch of stupid things. It is delivered by Best Express. After receiving my things, the courier company said it would compensate me, and then the recipient came to scold me. It is particularly difficult to admit that there is a problem and it is not a two-time cooperation. He also threatened me with a woman who said, "Don't let him see me. It took me three days to post an article. I don't even have the courage to tell how he did it. He was very embarrassed, and when something happened, he scolded the customer, thinking that someone else deliberately gave him less blame. I'm not so sick that I'm not afraid of damaging my virtue. Damn, the courier played ball for several days, and the seller and dispatcher in Taobao opened a fake certificate. Taobao's spicy chicken didn't have a verification certificate at all, so I stamped it.