Can’t get admin notices to display

Solved, but there are probably better ways?

/**
 * Notice utility function. Adds WC_notice if not admin page, adds admin notice if admin page
 */

function dd_notice($message, $type, $userid)
{
    if (is_admin()) {
        update_option('dd_notice', $message);
        update_option('dd_notice_userid', $userid);
    } else {
        wc_add_notice(__($message, 'woocommerce'), $type);
    }
}

function dd_add_notice()
{
    if (get_option('dd_notice')) {

        //Get the URL of the current page
        $currentUrl = wp_get_referer();

        //Check if URL contains query parameters and set ? or & as character
        if (!strpos($currentUrl, '?')) {
            $queryChar = '?';
        } else {
            $queryChar = '&';
        }

        //Notice to be added
        echo sprintf(
            '<div class="notice notice-error"><p>Notice for %s: %s</p><p><a href = "%s%sdd_remove_notice">Remove notice</a></p></div>',
            get_user_meta(get_option('dd_notice_userid'), 'billing_email', true),
            get_option('dd_notice'),
            $currentUrl,
            $queryChar
        );
    }
}
add_action('admin_notices', 'dd_add_notice');

//Remove notice if remove link was clicked
function dd_remove_notice()
{
    if (isset($_GET['dd_remove_notice'])) {
        delete_option('dd_notice');
    }
}
add_action('init', 'dd_remove_notice');