Why did the Bank of East Asia send me a message?

The specific content should be: Dear credit card customers, East Asia tip: Your credit card usage has been abnormal recently, and the credit card overdraft of commercial banks should be used for personal consumption, not for non-consumption areas such as production, operation and investment. Please pay attention to the reasonable and standardized use of credit cards, and properly keep all transaction vouchers for subsequent bank verification. East Asia China Customer Service Hotline: 95382