Uploading to S3 but nothing appears in the Web Console

I am trying to upload CSV files to AWS S3. My code has no syntax errors and doesn't cause any exceptions but the CSV files do not appear in web console. I also want to organise the CSV files by date. Here's the code:

 string[] files = Directory.GetFiles(folder, "*.csv*", SearchOption.TopDirectoryOnly);

        foreach (string file in files)
        {
            PutObjectRequest request = new PutObjectRequest();
            request.BucketName = "WorkFolder";
            request.Key = "CSV/" + date + "/"; 
            request.FilePath = file;
            s3client.PutObject(request);
            response = s3client.PutObject(request);
        }