What if I try to sign up with the wrong phone number?

[joaopcm]

How to reproduce

1. Sign up with the wrong phone number at https://vianapp.com.br;
2. Try to fill out the sign-up form again, but at this time with the right phone number (using the same email address);
3. You cannot update your phone number because we pre-fetch your data from the database and proceed from where you stopped;

@joaopcm @juancarlosbs, we need to propose a solution for this case.

[joaopcm]

@juancarlosbs I'd like you to propose a solution here