hello!
The links to the downloads in your email are links to zip files.
However, your browser may automatically unzip the zip file and delete it maybe. Leaving you with just the unzipped folder.
You could try to use a different browser to download the files.
Or you could zip the folder.
For example if you download lay.zip and you just get a folder called "lay" instead of a zip file, you can now zip this folder, so you will have a lay.zip file that contains the lay folder.