The merchant who bought it. In Shijie Town, Dongguan, all merchants who buy goods can issue coupons. General consumption receipts, shopping vouchers and receipts can all be used as consumption vouchers. As long as there is consumption, you can ask merchants to issue invoices as proof of consumption. Shijie Town, affiliated to Dongguan City, Guangdong Province, is located in the northeast of Dongguan City, along the Dongjiang River, adjacent to Shilong Ancient Town in the east and Dongguan City in the west.