If you buy something online, you can contact the seller and ask them to consult Shentong Company. If it is private, I suggest you go directly to the local business hall to find the person in charge. Since you refused to sign, he will sign for you. If it really doesn't work, they will definitely use express delivery. Call their next-level outlets. Unlike Tong Yuan, Shentong has a customer service complaint phone number at its headquarters.