curl --request GET \
  --url https://sandbox.thredfi.com/v1/platform/businesses/{business_id}/invoices/refunds/{refund_id}/ \
  --header 'Authorization: Bearer <token>'

{
  "id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
  "refunded_amount": 123,
  "customer_id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
  "customer_name": "<string>",
  "allocations": [
    {
      "id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
      "allocation_type": "invoice",
      "amount": 123,
      "invoice_id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
      "invoice_number": "<string>",
      "invoice_outstanding_balance_cents": 123,
      "target_description": "<string>",
      "description": "<string>",
      "allocation_date": "2023-11-07T05:31:56Z"
    }
  ],
  "refund_payments": [
    {
      "id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
      "refund_id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
      "refunded_amount": 123,
      "refund_processing_fee": 123,
      "reconciled_bank_transactions": [
        {
          "bank_transaction_id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
          "bank_transaction_date": "2023-11-07T05:31:56Z",
          "bank_transaction_amount_cents": 123,
          "bank_transaction_direction": "<string>",
          "reconciled_amount_cents": 123,
          "reconciliation_link_id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
          "reconciled_at": "2023-11-07T05:31:56Z",
          "currency": "<string>",
          "payment_type": "<string>",
          "bank_account_name": "<string>",
          "notes": "<string>"
        }
      ],
      "created_at": "2023-11-07T05:31:56Z",
      "updated_at": "2023-11-07T05:31:56Z",
      "external_id": "<string>",
      "completed_at": "2023-11-07T05:31:56Z",
      "method": "BANK_TRANSFER",
      "processor": "<string>",
      "transaction_tags": "<unknown>",
      "memo": "<string>",
      "metadata": "<unknown>"
    }
  ],
  "document": {
    "url": "<string>",
    "expires_in": 123,
    "document_id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
    "file_name": "<string>",
    "file_size": 123,
    "mime_type": "<string>"
  },
  "created_at": "2023-11-07T05:31:56Z",
  "updated_at": "2023-11-07T05:31:56Z",
  "external_id": "<string>",
  "status": "pending",
  "completed_at": "2023-11-07T05:31:56Z",
  "is_dedicated": true,
  "memo": "<string>",
  "reference_number": "<string>",
  "metadata": "<unknown>",
  "currency": "EUR"
}