Passwordless registration - email already in use

Yes. I tested removing it but then on submitting the form I just got a "Thanks" message and the redirect didn't work:

if (perch_member_logged_in()) {
        PerchSystem::redirect('confirm.php');
}

The member was created successfully in the admin though.

Sorry as I marked this as solved but after more testing it isn't.

By removing the helper it allows the member to be created in the db but the redirect I have on my customer details page then doesn't work (doesn't forward the user to the checkout). It just reloads the details page and outputs the <perch:success> message from my Shop > Checkout > customer_create_passwordless.html. If I manually go to the checkout after that the members details aren't there so I can't complete the purchase (so it's not just a simple redirect issue). As mentioned, the member IS created and viewable in the admin though.

details.php

<?php 

    include($_SERVER['DOCUMENT_ROOT'].'/admin/runtime.php');

    if (perch_member_logged_in()) {
        PerchSystem::redirect('confirm');
    }

    perch_layout('header', array(
        'title' => "Your details",
    )); 

?>


<h1 class="mb-0">Your details</h1>


<div class="clear">

    <div class="wrap wrap--small">

        <?php perch_content('Intro text'); ?>

        <?php
            // New customer sign up form
            perch_shop_registration_form([
                'template' => 'checkout/customer_create_passwordless.html'
            ]);

        ?>

    </div>

</div>

<div class="clear">
    <div class="wrap wrap--small">
        <?php perch_content('Shop footer'); ?>
    </div>
</div>


<?php 

    perch_layout('footer', array(
        'hide-social' => true,
    )); 

?>

customer_create_passwordless.html

<div class="clear feature-block mb-0">

<perch:form id="register" method="post" app="perch_shop">

    <div class="blocks blocks--3-cols blocks--mobile-1-col">

        <div>
            <perch:label for="first_name" class="apply-form__label">First name</perch:label>
            <perch:input type="text" id="first_name" required="true" label="First name" class="apply-form__input" />
            <perch:error for="first_name" type="required">Please add your name</perch:error>
        </div>

        <div>
            <perch:label for="last_name" class="apply-form__label">Last name</perch:label>
            <perch:input type="text" id="last_name" required="true" label="Last name" class="apply-form__input" />
            <perch:error for="last_name" type="required">Please add your name</perch:error>
        </div>

        <div>
            <perch:label for="email" class="apply-form__label">Email</perch:label>
            <perch:input type="email" id="email" required="true" placeholder="you@company.com" class="apply-form__input" />
            <perch:error for="email" type="required"><span style="color:red;">Please add your email address</span></perch:error>
            <perch:input type="hidden" id="password" value="__auto__" />
        </div>

    </div>

    <h2>Billing address</h2>

    <div class="blocks blocks--3-cols blocks--mobile-1-col">

        <div>
            <perch:label for="address_1" class="apply-form__label">Address 1</perch:label>
            <perch:input type="text" id="address_1" required="true" label="Address 1" class="apply-form__input" />
            <perch:error for="address_1" type="required">Please add the first line of your address</perch:error>
        </div>

        <div>
            <perch:label for="address_2" class="apply-form__label">Address 2</perch:label>
            <perch:input type="text" id="address_2" label="Address 2" class="apply-form__input" />
        </div>

        <div>
            <perch:label for="postcode" class="apply-form__label">Postal code</perch:label>
            <perch:input type="text" id="postcode" label="Postal code" class="apply-form__input" />
        </div>

        <div>
            <perch:label for="city" class="apply-form__label">City</perch:label>
            <perch:input type="text" id="city" label="City" class="apply-form__input" />
        </div>

        <div>
            <perch:label for="county" class="apply-form__label">State or County</perch:label>
            <perch:input type="text" id="county" label="County" class="apply-form__input" />
        </div>

        <div>
            <perch:label for="country" class="apply-form__label">Country</perch:label>
            <perch:input type="select" options="<perch:shop id="country_list" />" value="236" id="country" label="Country" />
        </div>

    </div>      

    <div class="clear mb-0">
        <perch:input type="submit" value="Next" class="button button--primary" />
    </div>

    <perch:success>
        <p>Thanks!</p>
    </perch:success>

</perch:form>

</div>