I use the credit card of Bank of Communications, and I swipe my card to the tax bureau every month to pay taxes. Bank of Communications sent me a short message about risk control. What should I do?

You must spend a large amount of money alone, or spend it frequently in a fixed merchant every month. The system detects suspected cashing! I suggest that you don't spend money in this merchant for at least three months. Credit card consumption is diversified. Just brush it later. If you really pay taxes instead of cashing in, you can also use it with confidence. If your card is blocked, you can provide an invoice for verification. However, this will not help you to increase the quota in Bank of Communications in the future, and it is possible to reduce the quota.