1. Transaction voucher (submit a scanned copy, photo or screenshot of the original voucher):

1) Formal transaction contract: The contract must be signed and sealed by both parties (if it is a company, the company seal must be affixed; if it is an individual, the individual signature is required);

2) Formal invoice;

3) Wangwang chat records involving the transaction content;

4) SMS messages in which the two parties communicate the transaction content;

5) Emails in which the two parties communicate the transaction content;

2. Shipping voucher (scanned copy or photo of the original shipping order):

1) If you use third-party logistics (such as express, express, LTL, dedicated line) and other shipping services, provide the original shipping order;

2) If you do not use third-party shipping services, you need to provide a shipping order signed and sealed by the buyer (individual buyers need to sign, corporate buyers need to stamp the company seal).

3. Valid identification documents of both parties to the transaction: If it is a company or individual, a business license is required; if it is an individual, a personal identification document is required.