What columns do you use? And with what columns description?

I use CSV to upload metadata to Pond5 all the time, had some trouble in the beginning, but now it's working pretty much flawlessly (the CSV is automatically generated in an application I wrote, so once I got it working, it has not been an issue since).
The system usually gives you feedback in the form of error messages. On the "Apply CSV" page below the submit button is where the error will appear if there is one during the processing (read every line to find the error). Also make sure to choose the appropriate information in the drop down menus above the button, otherwise it may not do anything upon pressing the button (or it may even process, but not apply the metadata to your assets).

One issue I could imagine is that your column headers are not contained in quotation marks. Here's how the headers look in my CSVs:

"originalfilename","title","description","keywords","copyright","location","price","pricelarge","priceweb","setpriceforme","aspectratio","specifysource","datecreated","containsaudio","cameraspeed","curatornote"

Not sure that's a requirement, though.

Also, perhaps try using "title" instead of the "name" column. I'm not sure what the difference is, but for me "title" is working fine.