The risk control telephone of Bank of Communications is mainly used to monitor the security of personal credit card swiping. The main reason for calling you is to confirm whether you spend money yourself. If not, it will stop loss in time and bring unnecessary trouble.
Generally speaking, when you receive a phone call, if you swipe your card too frequently or the amount is too high, it is easy to cause financial risks. You can confirm whether it is your own consumption and control the risk without asking other questions. Bank of Communications is still very responsible.