How to connect the data of the previous user to new user in passwordless Authentication

I am in the process of using Auth0 for Custom JWT Authentication on the MongoDB Realm side. The authentication type is Passwordless. There is a scenario where user may get a new phone number. Thus the user will register with new number. In such scenario the Auth0 support replied

If you are using passwordless since the phone number is the primary identity of the user who receives the passcode, if the user wants to use a different phone number they can enter the new number, which will create a separate user in the Auth0 tenant.

The problem is

How to connect the data of the previous user(old phone number) to new user(new phone number).?