我试图调用paypal退款api也传递正确的参数所需的数据，这是事务ID，但总是得到如下错误
Array
(
[TIMESTAMP] => 2017-12-21T06:48:53Z
[CORRELATIONID] => 83994511980f5
[ACK] => Failure
[VERSION] => 94.0
[BUILD] => 40680762
[L_ERRORCODE0] => 10009
[L_SHORTMESSAGE0] => Transaction refused
[L_LONGMESSAGE0] => You can not refund this type of transaction
[L_SEVERITYCODE0] => Error
[REFUNDSTATUS] => None
[PENDINGREASON] => None
)