otao

I have series of tax_class depende by customer role & im using woocommerce pay for payment,
recently I find this way to dynamic customer’s tax_class

add_filter('woocommerce_product_get_tax_class', 'ot_get_customer_tax_class'); // product tax class
add_filter('option_woocommerce_shipping_tax_class', 'ot_get_customer_tax_class'); // shipping tax class
add_filter('option_woocommerce_cod_settings', function($settings, $option_name){
    if(isset($settings['pay4pay_tax_class']) && 'inherit' === $settings['pay4pay_tax_class']){
        $settings['pay4pay_tax_class'] = ot_get_customer_tax_class($settings['pay4pay_tax_class']);
    }
    return $settings;
}, 10, 2); // #210521 payment fee tax class

hoping author of plugin could add a filter hook when get settings

// woocommerce-pay-for-payment\inc\class-pay4pay.php:286 get_current_gateway_settings()
return apply_filters('woocommerce_pay4pay_xxx_settings', $settings, $current_gateway);