curl --request GET \
  --url https://{operatorDomain}/v1/admin/finance/invoices/{id}/credit-notes \
  --header 'Authorization: Bearer <token>'

{
  "data": [
    {
      "id": "crn_01HZX...",
      "invoiceId": "<string>",
      "currency": "<string>",
      "totalCents": 123,
      "creditNoteNumber": "<string>",
      "reason": "<string>",
      "issueDate": "2023-12-25"
    }
  ]
}