Posts the pending return as an RMA.
            | Method | PostReturn | 
The request body is of type PostReturn.
| Name | Description | Data Type | 
|---|---|---|
| Options | xml:string | 
The response body is of type PostReturnResponse.
| Name | Description | Data Type | 
|---|---|---|
| PostReturnResult | A string value containing a JSON object. 
{
    "Data": {
        "RMANumber": "000000000001248"
    },
    "LookupData": {},
    "Result": {
        "Success": true,
        "Message": "",
        "ElapsedTime": "2217 ms"
    }
}
  | xml:string |