TLR response does not contain instance data

After post of equal TL Request including instanceId (without item data), there is a response with empty instance property:

{
"id": "df45dc97-32c9-458f-9b32-2c1ea8e73164",
"requestLevel": "Title",
"requestType": "Recall",
"fulfilmentPreference": "Hold Shelf",
"requester":

,
"requestDate": "2021-12-01T14:14:47Z",
"requesterId": "e1b404dc-777f-4150-a4c6-ff5761d274dc",
"pickupServicePointId": "3a40852d-49fd-4df2-a1f9-6e2641a6e91f",
"instanceId": "14282a2e-c475-4161-a27f-8adb79fe4e90"
}