curl --request GET \
  --url https://vpos-sandbox.payven.com.tr/api/v1/refunds \
  --header 'Authorization: Bearer <token>'

{
  "items": [
    {
      "id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
      "transaction_id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
      "merchant_id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
      "merchant_external_id": "<string>",
      "merchant_name": "<string>",
      "refund_amount": 123,
      "original_amount": 123,
      "currency": "<string>",
      "reason": "<string>",
      "created_by": "<string>",
      "created": "2023-11-07T05:31:56Z",
      "completed_at": "2023-11-07T05:31:56Z",
      "error_message": "<string>"
    }
  ],
  "page": 123,
  "total_pages": 123,
  "total_count": 123,
  "has_previous_page": true,
  "has_next_page": true
}