How does ICBC send text messages to overdue mortgage repayment?

ICBC reminds you that you have mortgaged your house in our bank for 5-30 years, including (debit card number * *), and the repayment amount in this period is RMB * *. If the repayment has been made, please ignore it. SMS of successful deduction: ICBC * * card paid RMB * * on * * month, and the loan principal and interest were deducted at the counter, with the balance of RMB * *.