1. There must be a loophole. Buyers can modify customer service and delivery address before delivery. If you are not at ease, you can contact customer service after delivery and ask the express number of this transaction order. If the courier number is consistent with the courier tracking status, there is basically no problem. Of course, you can also ask the customer service directly what is the delivery address of this order, but if the customer service is more formal, you may not want to tell you, after all, you are responsible for the buyer information of the order.
2. For the transaction of finding someone else to pay, the buyer ID displayed is the ID of the orderer, not the ID of the payer.
In fact, if you came to him at the beginning, instead of him, the chance of meeting a liar is very, very small. That's how I found someone to buy a blood glucose meter for thousands of dollars in JD.COM, and there were not so many scams.