private static string ReadFeedbackFromBlob(Uri uri)
        {
            var currentBlock  = new CloudAppendBlob(uri);
            var stringbuilder = new StringBuilder();

            using (var streamReader = new StreamReader(currentBlock.OpenRead()))
            {
                while (!streamReader.EndOfStream)
                {
                    string currentFeedbackString = streamReader.ReadLine();
                    if (currentFeedbackString != null)
                    {
                        stringbuilder.AppendLine(currentFeedbackString);
                    }
                }
            }
            return(stringbuilder.ToString());
        }