Second, if the buyer's feedback can't be judged by the naked eye, the seller should provide the formal purchase certificate of the goods according to Taobao's requirements, such as the manufacturer's distribution certificate, product certificate, commercial invoice and other supporting documents to confirm that the seller's goods have a formal source. If you provide a formal source and Taobao confirms that the certificate is valid, Taobao will ask the buyer to provide a test certificate to prove that the material does not match.
When the seller provides evidence, the official purchase certificate of the goods that needs to be provided:
1, the original bill that the seller went to when purchasing the goods;
2. Commodity name/commodity number, quantity and date are required;
3. Stamp the special seal for the bill;
4. If the seller buys goods or goods on a foreign website, provide the transaction order established by the website and the logistics documents delivered by the website to the seller or buyer.
5. If the seller purchases goods or purchases goods in foreign/offline channels, it is also necessary to provide corresponding shopping receipts.