How can I guarantee the Yingtong video card without an invoice?

Can't send insurance. Yingtong graphics card can't be guaranteed without invoice. Personal warranty requires an invoice. Yingtong graphics card is a product of Shenzhen Yingtong Digital Technology Co., Ltd., which was established in Shenzhen in 2000. The company is committed to the research, development, production and marketing of computer accessories and consumer electronic products. Yingtong is an independent brand under its banner, which has developed into the top five brands in the field of computer boards in China in just a few years.