1 can be changed.
Now when we use all kinds of software or handle some business in the bank, we need to bind our personal mobile phone number, mainly for the convenience of contacting us when there are any problems in the future, or for timely notification of anything. However, if you find that your reserved mobile phone number is wrong, you should change it in time.
2 Manual service desk
Some businesses can be handled directly on the mobile phone, but some things we have to go to manual service, and he also has to reserve the mobile phone number and write it wrong. This information has been uploaded to the bank and can't be changed in the mobile phone. We only need to talk to the relevant personnel at the manual service desk, and he can replace it for us.
Therefore, in our daily life, we should pay more attention to this problem. It is good for us to understand this problem. Now the mobile phone numbers we leave on various platforms or websites are actually a way of identity binding, which can also prove the rule that a user can only log in once. The above are some things related to some problems I have summarized, and I hope these will help you in your future study and life.