Не приходит смс код, что же делать?

У меня есть приложение, я использую firebase. Для теста я добавил свой номер и код, при наборе и своего кода, я успешно авторизуюсь. Но как стоит мне ввести другой номер и нажать на "отправить" ничего не происходит. Помогите пожалуйста.

EditText editTextPhone, editTextCode;

FirebaseAuth mAuth;

String codeSent;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);

mAuth = FirebaseAuth.getInstance();

editTextCode = findViewById(R.id.editTextCode);
editTextPhone = findViewById(R.id.editTextPhone);

findViewById(R.id.buttonGetVerificationCode).setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
sendVerificationCode();
}
});

findViewById(R.id.buttonSignIn).setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
verifySignInCode();
}
});
}

private void verifySignInCode(){
String code = editTextCode.getText().toString();
PhoneAuthCredential credential = PhoneAuthProvider.getCredential(codeSent, code);
signInWithPhoneAuthCredential(credential);
}

private void signInWithPhoneAuthCredential(PhoneAuthCredential credential) {
mAuth.signInWithCredential(credential)
.addOnCompleteListener(this, new OnCompleteListener() {
@Override
public void onComplete(@NonNull Task task) {
if (task.isSuccessful()) {
//here you can open new activity
Toast.makeText(getApplicationContext(),
"Вход Успешен", Toast.LENGTH_LONG).show();
} else {
if (task.getException() instanceof FirebaseAuthInvalidCredentialsException) {
Toast.makeText(getApplicationContext(),
"Неверный Проверочный Код ", Toast.LENGTH_LONG).show();
}
}
}
});
}

private void sendVerificationCode(){

String phone = editTextPhone.getText().toString();

if(phone.isEmpty()){
editTextPhone.setError("Phone number is required");
editTextPhone.requestFocus();
return;
}

if(phone.length() < 10 ){
editTextPhone.setError("Please enter a valid phone");
editTextPhone.requestFocus();
return;
}

PhoneAuthProvider.getInstance().verifyPhoneNumber(
phone, // Phone number to verify
60, // Timeout duration
TimeUnit.SECONDS, // Unit of timeout
this, // Activity (for callback binding)
mCallbacks); // OnVerificationStateChangedCallbacks
}

PhoneAuthProvider.OnVerificationStateChangedCallbacks mCallbacks = new PhoneAuthProvider.OnVerificationStateChangedCallbacks() {

@Override
public void onVerificationCompleted(PhoneAuthCredential phoneAuthCredential) {

}

@Override
public void onVerificationFailed(FirebaseException e) {

}

@Override
public void onCodeSent(String s, PhoneAuthProvider.ForceResendingToken forceResendingToken) {
super.onCodeSent(s, forceResendingToken);

codeSent = s;
}
};

}