1. Contact the seller immediately and ask for a refund or replacement.

2. If the seller refuses to return the goods, please contact the local administrative department for industry and commerce and ask the manufacturer to carry out sampling inspection and make final treatment according to the inspection results.

3. If the sampling results are different, you can feedback the seller's place of origin, production date, manufacturer name and other related information. Give it to Yanchuntang, and Yanchuntang will provide genuine identification, and finally determine whether it is genuine or not.