Taobao sellers can get the phone number of buyers during the transaction, which is to facilitate communication and confirm the order information. The buyer's credit rating is the rating given by Taobao according to the buyer's transaction record and evaluation, and the seller can judge the reliability of the buyer through the credit rating. In addition, the seller can also see the buyer's receiving address, so as to accurately deliver the goods and ensure that the goods are delivered to the right place.