Does the subject want to ask "how to check whether the list of Macao jewels is true"?

1. First, check whether the company name and address on the file really exist.

2. Secondly, check whether the description of the goods on the documents is consistent with the jewelry purchased. Check whether the price on the document is reasonable and compare it with the market price.

3. Finally, confirm whether the signature and seal on the document are true.