This is a scam. According to the inquiry on Tanqi Finance.com, Douyin is a common method of card fraud when applying for a credit card in Hong Kong. Douyin will contact someone to apply for a bank card and credit card. After the application is successful, a fake card will be mailed to the victim, and then the victim will use it. Bank cards are laundering money like crazy. The China Banking and Insurance Regulatory Commission has stipulated that credit card business must not be outsourced. When applying for a credit card, the customer must sign for confirmation. It is illegal to issue a credit card on behalf of someone else. Agent credit cards charge high fees and risk personal privacy leaks. It is recommended to apply for a credit card through official channels.