Change Return Label date diff for Unifaun

functions.php

<?php
/**
 * @snippet       WooCommerce - Sets date difference from Orderdate to display return label button
 * @author        Redlight Media AB / Christopher Hedqvist
 * @compatible    WooCommerce 3.8.0
 */
function redlight_unifaun_return_label_date_diff( $diff ) {

    return 60;
}
add_filter( 'ac_wc_unifaun_return_label_date_diff', 'redlight_unifaun_return_label_date_diff', 10 );