This is for American users.

Explanation: Generally, after returning the goods, American buyers can contact the seller and ask the seller to give them a return label. The seller buys the prepaid label of the courier company through the courier company's network or physical business point. That is, the seller first pays the courier, and the courier gives the seller a label. The seller then sends this label to you, and you print it and stick it on your return package. Then you give the goods to the courier company, but you don't need to pay the shipping fee because the seller has already paid for it.