RefundTransaction

{
    "reference_id": "9c1e2f3a-5b47-4d8e-9f21-6a0b3c4d5e6f",
    "end_to_end_id": "E1234567820260810143000abcdef123",
    "amount": "250.00",
    "paid_at": "2026-08-01T12:00:00.000000Z",
    "method": "pix",
    "fees": "12.45",
    "product": {
        "name": "Curso de Fotografia"
    },
    "client": {
        "name": "Maria Silva",
        "email": "maria@example.com",
        "document": "12345678901",
        "phone": "+5511999999999"
    }
}