Open a refund request

{
  "data": {
    "refundRequestId": "string",
    "status": "pending",
    "amount": {
      "amount": 0,
      "currency": "string"
    },
    "reason": "string",
    "notes": "string",
    "createdAt": "string",
    "updatedAt": "string"
  }
}

{
  "error": {
    "code": "VALIDATION_ERROR",
    "message": "The request is not valid. See `fields` for what to correct.",
    "requestId": "9f1c7b2e-…"
  }
}

{
  "error": {
    "code": "AUTHENTICATION_REQUIRED",
    "message": "This endpoint requires an API key.",
    "requestId": "9f1c7b2e-…"
  }
}

{
  "error": {
    "code": "NOT_FOUND",
    "message": "No such resource.",
    "requestId": "9f1c7b2e-…"
  }
}

{
  "error": {
    "code": "CONFLICT",
    "message": "The resource is not in a state that allows this operation.",
    "requestId": "9f1c7b2e-…"
  }
}

{
  "error": {
    "code": "RATE_LIMITED",
    "message": "Too many requests. Retry after the interval in `Retry-After`.",
    "requestId": "9f1c7b2e-…"
  }
}

{
  "error": {
    "code": "INTERNAL_ERROR",
    "message": "Something went wrong on our side.",
    "requestId": "9f1c7b2e-…"
  }
}

{
  "error": {
    "code": "SERVICE_RESPONSE_INVALID",
    "message": "The upstream service returned an unexpected response.",
    "requestId": "9f1c7b2e-…"
  }
}

{
  "error": {
    "code": "SERVICE_UNAVAILABLE",
    "message": "The service is temporarily unavailable. Try again shortly.",
    "requestId": "9f1c7b2e-…"
  }
}