Requests; neither user fields or custom Fields are working

Hi,

We're having some issues getting custom_fields and user_fields working. We receive requests on our dashboard with with without the custom data.

We get the following output from our data code (where the xxxx's are really my playfab id):

{"request":{"created_at":"2021-01-20 10:38:38","requester":{"name":"xxxx","email":"hannes.lidbeck@starstable.com"},"subject":"From Game","comment":{"body":"Test feedback"},"user":{"user_fields":{"playfab_id":"68195A5EEA8CB8A5"}},"custom_fields":[{"id":360012294580,"value":"xxxx"},{"id":27376589,"value":"bug"},{"id":27618025,"value":"hannes.lidbeck@starstable.com"}]}}

We're using Unity and REST api's, here's our code:

var data = new JsonData()
{
     request = new JsonDataRequest()
     {
          created_at = System.DateTime.UtcNow.ToString(),
          requester = new JsonDataRequester()
          {
               name = playFabManager.PlayFabId,
               email = Email,
          },
          subject = "From Game",
          comment = new JsonDataComment() { body = Feedback },
          user = new JsonDataUser()
          {
               user_fields = new Hashtable()
               {
                   { UserFieldPlayFabId, playFabManager.PlayFabId }, // string, string
               }
          },
          custom_fields = new JsonDataCustomField[]
          {
               new JsonDataCustomField()
               {
                    id = PlayFabFieldId, // long
                    value = playFabManager.PlayFabId // string
               },
               new JsonDataCustomField()
               {
                    id = HelpWithFieldId, // long
                    value = "bug"
               },
               new JsonDataCustomField()
               {
                    id = EmailFieldId, // long
                    value = Email // string
               },
          },
     }
};

var str = Newtonsoft.Json.JsonConvert.SerializeObject(data);

var request = new UnityEngine.Networking.UnityWebRequest(Url, "POST");
request.uploadHandler = new UnityEngine.Networking.UploadHandlerRaw(System.Text.Encoding.UTF8.GetBytes(str));
request.downloadHandler = new UnityEngine.Networking.DownloadHandlerBuffer();
request.SetRequestHeader("Content-Type", "application/json");