curl --request PUT \
  --url https://api.sandbox.nxos.io/v1/ledger/{ledger_key}/transaction/{transaction_key}/refund \
  --header 'Authorization: <authorization>'

{
  "transaction_id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
  "asset_moves": [
    {
      "asset_move_ref": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
      "source_account": {
        "ref": "<string>",
        "id": "<string>"
      },
      "destination_account": {
        "ref": "<string>",
        "id": "<string>"
      },
      "asset_code": "<string>",
      "amount": "<string>",
      "status": "EXPECTED",
      "type": "<string>",
      "created_at": "2023-11-07T05:31:56Z",
      "updated_at": "2023-11-07T05:31:56Z",
      "decline_type": "<string>",
      "categories": [
        "<string>"
      ],
      "metadata": {}
    }
  ],
  "created_at": "2023-11-07T05:31:56Z",
  "updated_at": "2023-11-07T05:31:56Z",
  "transaction_ref": "<string>"
}