Who should I complain to if I bought defective yellow dragon jade in Lijiang while traveling in Yunnan?

Did you buy it in a regular tourist store? If so, you can contact the tour guide or the tourism bureau. If you buy it in a store elsewhere, you have to negotiate with the merchant, but now Lijiang does Many of the business people are not locals. You can only check if the store has industrial and commercial registration, and then protect your rights