Enatega Customer Application: Phone number already associated error shown during login with email

Describe the bug
When a user logs in using their email address and proceeds to verify their phone number, the app displays an error message stating that the phone number is already associated with another account — even though it's the correct number linked to the same user.

🔄 Steps to Reproduce:

Open the app and choose to log in with email.
Enter a valid email and complete login.
When prompted, enter your phone number for verification.
Observe the error message.
Expected behavior
The phone number should be verified successfully if it belongs to the same user account.

Start by reproducing the issue in the customer application using email login, then trace the phone-number verification flow described in the report. The fix is complete when a phone number belonging to the same account is accepted without the already-associated error; no file or test is named in the issue.

Written by the indexing model from the issue text.