Guangzhou Jasper Peak Jewelry Store has an invoice. Every piece of gold jewelry purchased in Guangzhou Biyufeng Jewelry (Beijing Road Store) will be issued with a brand-specific quality guarantee and an invoice, both in paper and electronic versions. Invoice refers to the business vouchers issued and collected by all units and individuals in buying and selling goods, providing or receiving services and engaging in other business activities. It is the original basis of accounting, and it is also an important basis for law enforcement inspection by audit institutions and tax authorities.