To bind a new number, you need use a web version dikidi.net/business.
After log in, you need to go to your project and open the section Settings - Access to the project.
Use the Add Access button to add a new Creator Access phone number to your phone. Make sure the number is correct before saving.
Once you've added access, you'll be able to sign in with a new number and work with your project. Old number from accesses if desired, you can delete.