protected function sendVerificationCodeNotification($twoStepAuth, $deliveryMethod = null)
    {
        $user = Auth::User();
        if ($deliveryMethod === null) {
            $user->notify(new SendVerificationCodeEmail($user, $twoStepAuth->authCode));
        }
        $twoStepAuth->requestDate = Carbon::now();

        $twoStepAuth->save();
    }