There are a number of ways to find a good seller:
1. Filter top-rated sellers with the advanced search tool. 
2. Check a seller’s feedback ratings. This rating is based on other buyers’ reviews.
3. Other buyers’ feedback is a valuable evaluation to see if the seller is trustworthy. Check for product reviews, service feedback and other relevant information. 
4. Ask questions on App. You can tap “Questions & Answers”, you can check questions and ansewrs of other buyer on “Quaestion List” page, and you can also ask questions to wait reply of other buyers who have received the products.
If you still have any doubts, don’t be afraid to contact a seller or open a dialogue. Good sellers are typically happy to engage with interested buyers.