public static Receipt GetReceipt(string url, string receiptData)
        {
            Receipt result = null;

            string post = PostRequest(url, ConvertReceiptToPost(receiptData));

            if (!string.IsNullOrEmpty(post))
            {
                    try { result = new Receipt(post); }
                    catch { result = null; }
            }

            return result;
        }
 /// <summary>
 /// Sends the ReceiptData to the Verification Url to be verified.
 /// </summary>        
 public static bool IsReceiptValid(Receipt receipt)
 {
     return (receipt != null && receipt.Status == 0);
 }
 /// <summary>
 /// Sends the ReceiptData to the Verification Url to be verified.
 /// </summary>
 public static bool IsReceiptValid(Receipt receipt)
 {
     return(receipt != null && receipt.Status == 0);
 }