curl --request POST \
  --url https://api.{tenant}.getomneo.com/api/v3/redemptions/{redemption}/reversal

{
  "data": {
    "id": "<string>",
    "profile_id": "<string>",
    "total_localised": "<string>",
    "total": "<string>",
    "location_id": "<string>",
    "balances": {
      "reward_balance": "<string>",
      "credit_balance": "<string>",
      "point_balance": "<string>",
      "point_balance_dollars": "<string>",
      "benefit_balance": "<string>",
      "combined_balance_dollars": "<string>",
      "localised": {
        "reward_balance": "<string>",
        "point_balance_dollars": "<string>",
        "combined_balance_dollars": "<string>"
      },
      "currency": {
        "id": 123,
        "from": "<string>",
        "to": "<string>",
        "rate": 123,
        "is_system": true,
        "created_at": "<string>",
        "updated_at": "<string>"
      }
    },
    "meta": "<string>",
    "transaction_external_id": "<string>",
    "transaction_receipt_ref": "<string>",
    "created_at": "<string>",
    "updated_at": "<string>",
    "location": {
      "id": "<string>",
      "type": "<string>",
      "name": "<string>",
      "description": "<string>",
      "phone": "<string>",
      "email": "<string>",
      "external_id": "<string>",
      "is_published": "<string>",
      "is_permanently_closed": "<string>"
    },
    "currency": {
      "id": 123,
      "from": "<string>",
      "to": "<string>",
      "rate": 123,
      "is_system": true,
      "created_at": "<string>",
      "updated_at": "<string>"
    }
  }
}