My money from Furong Cary in Changsha Bank was taken away for no reason, and two 700 yuan were added. What should I do?

Was it notified by SMS from Changsha Bank? In this case, you should take your card and passbook to the bank to withdraw some money, not much. If it's an ATM, print a receipt. In short, you have to prove that your card and passbook were there at that time, so that you can find evidence, find banking theory and solve problems.

Is Changsha Bank so insecure and unreliable? I also saved a lot of money for my grandmother. . .