Not illegal. When promoting credit cards, Tik Tok anchors need to abide by the relevant regulations, ensure that the advertising content is true, accurate and legal, and must not seduce, deceive or mislead consumers to obtain benefits in any form. At the same time, the anchor needs to legally register individual industrial and commercial households, issue legal invoices and pay settlement, meet the requirements of tax and financial supervision, and ensure the legitimacy and reliability of commercial activities.