*** RETURNS API BELOW ***
Array ( [code] => 0 [status_code] => [status_msg] => [sign] => 15c425de936f5f9ab0cc3374bab8467a99212ab6dbee963251e09d02f21c004167f9820b4794ff26a99b9febbdf4b5449fb65a3cd2ddbdd3f6400005b8bbfb88 [version] => 2.0.0 [msg] => ok [time_stamp] => 2025-04-04T05:37:25.616418+08:00 [data] => Array ( [nonce_str] => [err_msg] => error param ('refund_fee' ). [result] => FAIL [err_code] => KSHER_INVALID_PARAM ) )mch_order_no ksher_order_no