Deserialize json using json.net

I'm trying to deseriliaze this json response without luck.

Unable to cast object of type 'Newtonsoft.Json.Linq.JArray' to type 'RootObject'.

RootObject rootObject = JsonConvert.DeserializeObject(responseMessage);
What Am I doing wrong?

[{"total_collected_money":{"currency_code":"USD","amount":3497},"tender":[{"type":"CREDIT_CARD","name":"Credit Card","total_money":{"currency_code":"USD","amount":3497},"card_brand":"AMERICAN_EXPRESS","pan_suffix":"9999","entry_method":"SWIPED"}],"inclusive_tax_money":{"currency_code":"USD","amount":0},"id":"xxxx","discount_money":{"currency_code":"USD","amount":-1498},"device":{"name":"iPad"},"net_total_money":{"currency_code":"USD","amount":3401},"tax_money":{"currency_code":"USD","amount":0},"creator_id":"xxxx","merchant_id":"xxxx","refunded_money":{"currency_code":"USD","amount":-13487},"inclusive_tax":[],"refunds":[{"type":"FULL","created_at":"2014-02-20T16:21:32Z","processed_at":"2014-02-20T16:21:32Z","reason":"Canceled Order","refunded_money":{"currency_code":"USD","amount":-3497}}],"additive_tax_money":{"currency_code":"USD","amount":0},"processing_fee_money":{"currency_code":"USD","amount":-96},"tip_money":{"currency_code":"USD","amount":0},"additive_tax":[],"created_at":"2014-02-20T16:20:06Z"}]

public class TotalCollectedMoney
{
    public string currency_code { get; set; }
    public int amount { get; set; }
}

public class TotalMoney
{
    public string currency_code { get; set; }
    public int amount { get; set; }
}

public class Tender
{
    public string type { get; set; }
    public string name { get; set; }
    public TotalMoney total_money { get; set; }
    public string card_brand { get; set; }
    public string pan_suffix { get; set; }
    public string entry_method { get; set; }
}

public class InclusiveTaxMoney
{
    public string currency_code { get; set; }
    public int amount { get; set; }
}

public class DiscountMoney
{
    public string currency_code { get; set; }
    public int amount { get; set; }
}

public class Device
{
    public string name { get; set; }
}

public class NetTotalMoney
{
    public string currency_code { get; set; }
    public int amount { get; set; }
}

public class TaxMoney
{
    public string currency_code { get; set; }
    public int amount { get; set; }
}

public class RefundedMoney
{
    public string currency_code { get; set; }
    public int amount { get; set; }
}

public class RefundedMoney2
{
    public string currency_code { get; set; }
    public int amount { get; set; }
}

public class Refund
{
    public string type { get; set; }
    public string created_at { get; set; }
    public string processed_at { get; set; }
    public string reason { get; set; }
    public RefundedMoney2 refunded_money { get; set; }
}

public class AdditiveTaxMoney
{
    public string currency_code { get; set; }
    public int amount { get; set; }
}

public class ProcessingFeeMoney
{
    public string currency_code { get; set; }
    public int amount { get; set; }
}

public class TipMoney
{
    public string currency_code { get; set; }
    public int amount { get; set; }
}

public class RootObject
{
    public TotalCollectedMoney total_collected_money { get; set; }
    public List<Tender> tender { get; set; }
    public InclusiveTaxMoney inclusive_tax_money { get; set; }
    public string id { get; set; }
    public DiscountMoney discount_money { get; set; }
    public Device device { get; set; }
    public NetTotalMoney net_total_money { get; set; }
    public TaxMoney tax_money { get; set; }
    public string creator_id { get; set; }
    public string merchant_id { get; set; }
    public RefundedMoney refunded_money { get; set; }
    public List<object> inclusive_tax { get; set; }
    public List<Refund> refunds { get; set; }
    public AdditiveTaxMoney additive_tax_money { get; set; }
    public ProcessingFeeMoney processing_fee_money { get; set; }
    public TipMoney tip_money { get; set; }
    public List<object> additive_tax { get; set; }
    public string created_at { get; set; }
}

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