售后金额不合法，大于最大可退款金额

请求参数

{

    "out_order_id": "75121",

    "out_aftersale_id": "75121",

    "openid": "oPlX00OpIvEVqbwjoC8I1xHg7QGI",

    "type": "1",

    "product_info": {

        "out_product_id": "32392",

        "out_sku_id": "",

        "product_cnt": "1"

    },

    "orderamt": 10,

    "refund_reason": "不喜欢,不想要了",

    "refund_reason_type": "1"

}