JD.COM Express will call you first to ask if you are here and have time. Cash on delivery, he will tell you how much, they want to use credit card. Because they are depressed, give change.
You can buy as much money as you want in JD.COM, and there will be no extra freight.
You say you want to inspect the goods, he will tell you how to inspect the goods, open them, and there is no sound, indicating whether the touch is normal or not.