1, you can communicate with the seller, explain that the betel nut you bought is not from local origin, and ask if you can return it.
2. When buying betel nut, you can carefully check the information on the product label or package to see if there is a clear indication of the place of origin.
3. If the seller refuses to return the goods or solve the problem, you can consider complaining or appeal to the relevant departments.
4. If you can't solve the problem through the seller or relevant departments, you can handle it yourself.