文档中的返回和实际的返回不一致

https://developers.weixin.qq.com/doc/offiaccount/WeChat_Invoice/E_Invoice/Invoicing_Platform_API_List.html

你们文档写着返回：
{
	"errcode": 0,
	"errmsg": "ok",
	"card_id": "pjZ8Yt9WoOePThU0NfUKz5-tBEWU"
}
我收到的返回是：
{
	"errcode": ,
	"errmsg": "ok",
}
 你们通过回调给到我cardId 没有和公众号关联起来
"{\"CreateTime\":1578041328,\"Event\"\"card_pass_check\"\"RefuseReason\"\"\"\"ToUserName\"\"gh_40d5808fb7d1\"\"FromUserName\"\"ozfH4wiJohC5GPtA1yzV5MSaridI\"\"MsgType\"\"event\"\"CardId\"\"pzfH4wk4rb7nJaYSpB_vRkiO2lRA\"}";