Hi – sorry to hear you are hitting difficulties here.
Would it be possible to share your CSV data so I can take a look and see how it’s structured?
Though pasting it straight into the forum probably isn’t a great idea if you could make it available for download (you could even upload it as a media file to your WordPress site and grab the URL, or else use a service like Dropbox or similar) and share that as a private reply that would be awesome.
Thanks!