curl --request POST \
  --url https://api.kapso.ai/platform/v1/whatsapp/phone_numbers/{phone_number_id}/display_name_requests \
  --header 'Content-Type: application/json' \
  --header 'X-API-Key: <api-key>' \
  --data '{
  "display_name_request": {
    "new_display_name": "Acme Support"
  }
}'

{
  "data": {
    "id": "2b0f4a1e-7a58-4a15-b0c9-0d7f1a2b3c4d",
    "whatsapp_config_id": "4a5b6c7d-8e9f-0a1b-2c3d-4e5f6a7b8c9d",
    "requested_display_name": "Acme Support",
    "previous_display_name": "+1 555-123-4567",
    "status": "pending_review",
    "submitted_at": "2025-07-14T15:00:00Z",
    "reviewed_at": null,
    "applied_at": null,
    "meta_error_code": null,
    "meta_error_subcode": null,
    "meta_error_type": null,
    "meta_error_message": null
  }
}