I am visiting China and only about half of my taobao orders have had free shipping. In some cases where I paid for shipping, there was a free shipping option, b

I am visiting China and only about half of my taobao orders have had free shipping. In some cases where I paid for shipping, there was a free shipping option, but the price + shipping was lower for another listing of the same item where I had to pay for shipping. Also, shipping is not always quick. Sometimes, the merchant doesn't have the item in stock that they listed and rather than delist or tell you, they just leave your order in the system until you contact them. Then they tell you to ask for a refund. I have had it happen multiple times over the past 2 weeks with enterprise-grade network equipment like SFP transceivers and media converters. I even had it happen with a TP-LINK TL-EP110.