You can contact the seller of Taobao and communicate with him. At present, all reputable stores in Taobao have no reason to return goods within 7 days, but if you don't buy return shipping insurance, you need to pay the freight yourself. Just talk to him. Taobao cares most about evaluation. It's really not good to give him bad reviews. If not, complain to him. Of course, this is the last resort. It is best to communicate well. After all, it is not easy. I hope I can help you.