When delivering a courier, the courier doesn't sign the courier slip, which is against the express delivery business regulations. In this case, if you complain about the relevant courier company, you should criticize, educate or punish the relevant salesmen.

When sending a courier, it is generally stipulated in the courier list that the courier should sign for it and leave an attachment to the customer. Customers can check the progress of the goods as long as they leave the attachment, that is, the express delivery number. If the shipping status of the goods is not found in about two days, they need to contact the customer service of the relevant courier company immediately to handle the progress of the goods list.