Refund API - For User Registration

{
    "UserRegistrations": [
        {
            "centercode": "00201",
            "centername": "NIIT Delhi South Extension Centre",
            "registrationcode": "R180020101042",
            "coursdescription": "Post Graduate Diploma in Banking",
            "studentcode": "S180020100318",
            "registrationdate": "2017-07-31T00:00:00",
            "admissiontypecode": "RG",
            "startsemesternumber": 1,
            "coursecode": "PGDB",
            "curriculamcode": "BS",
            "fromcoursecode": null,
            "origionalcoursecode": "PGDB",
            "confirmcoursecode": "PGDB",
            "serviceofexpirydate": "2018-12-31T00:00:00",
            "studentstatus": "VALID"
        }
    ],
    "ErrorYN": "N",
    "Message": "Success"
}